A Buffalo Bills cheerleader performs during the second half of an NFL football game on Sunday, Dec. 16, 2012, in Toronto. (AP Photo/Todd Parmington)

A Dallas Cowboys cheerleader performs during the first half of an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

Houston Rockets coach Kevin McHale, right, is hugged by Boston Celtics' Kevin Garnett after an NBA basketball game Friday, Dec. 14, 2012, in Houston. McHale's daughter died recently. The Rockets beat the Celtics 101-89. (AP Photo/David J. Phillip)

Danny Queck of Germany jumps during the training and qualification day at the Ski jumping FIS World Cup in Engelberg, Switzerland on Friday, Dec. 14, 2012. (AP Photo/Keystone/Sigi Tischler)

An Oakland Raiders cheerleader performs before an NFL football game between the Oakland Raiders and the Kansas City Chiefs in Oakland, Calif., Sunday, Dec. 16, 2012. (AP Photo/Marcio Jose Sanchez)

Brian Bain of Culver, Ore. rides in the bareback riding competition of the National Finals Rodeo, Friday, Dec. 14, 2012, in Las Vegas. (AP Photo/Julie Jacobson)

An Arizona Cardinals cheerleader performs during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 16, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

Phoenix Suns guard P.J. Tucker (17) gets fouled by Utah Jazz guard Earl Watson (11) in the third quarter during an NBA basketball game on Friday, Dec. 14, 2012, in Phoenix. The Suns defeated the Jazz 99-84. (Rick Scuteri/AP Photos)

Switzerland's Lara Gut speeds down the course to place first in a women's Alpine Ski World Cup downhill race, in Val d'Isere, France, Friday, Dec.14, 2012. (AP Photo/Marco Trovati)

Nonito Donaire, left, delivers a knockout blow to Jorge Arce during their WBO junior featherweight title boxing match Saturday, Dec. 15, 2012, in Houston. Donaire knocked Arce out in the third round. (AP Photo/David J. Phillip)

Miami Heat's LeBron James (6) remembers the victims of the mass shooting in Newtown, Conn., during an NBA basketball game against the Washington Wizards in Miami, Saturday, Dec 15, 2012. (AP Photo/Alan Diaz)

An Arizona Cardinals cheerleader performs during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 16, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

Boston Celtics head coach Doc Rivers, right, argues a call with an official during the second quarter of an NBA basketball game, Saturday, Dec. 15, 2012, in San Antonio. (AP Photo/Eric Gay)

Switzerland's Roger Federer wearing a Colombian traditional hat holds a trophy after an exhibition match against France's tennis player Jo-Wilfried Tsonga in Bogota, Colombia, Saturday, Dec.15, 2012. (AP Photo/Fernando Vergara)

Oakland Raiders cheerleaders perform during the first half of an NFL football game between the Oakland Raiders and the Kansas City Chiefs in Oakland, Calif., Sunday, Dec. 16, 2012. (AP Photo/Marcio Jose Sanchez)

Oregon's Johnathan Loyd, right, flies through the air as Nebraska's Ray Gallegos stuffs the ball in the first half of their NCAA college basketball game in Eugene, Ore., Saturday Dec. 15, 2012. Loyd was trying to block Gallego's shot. Oregon defeated Nebraska 60-38. (AP Photo/The Register-Guard, Kevin Clark)

An Arizona Cardinals cheerleader performs during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 16, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

In this photo provided by Michael Burns, thoroughbreds break from the gate at Woodbine Racetrack in Toronto, Sunday, Dec. 16, 2012. (AP Photo/The Canadian Press, Michael Burns) ONE TIME USE ONLY; NO ARCHIVES; NO SALES

Georgia's Jasmine Hassell (12) attempts a shot while defended by Lipscomb's Erika Thornberry during the second half of an NCAA college basketball game in Athens, Ga., Sunday, Dec. 16, 2012. Georgia won 93-42. (AP Photo/ AJ Reynolds)

Serbia's Andrea Lekic, left, reacts after her team had lost their third placel women's handball European Championship match against Hungary in Belgrade, Serbia, Sunday, Dec. 16, 2012. (AP Photo/Marko Drobnjakovic)

New England Patriots running back Stevan Ridley (22) has his helmet pulled by a San Francisco 49ers defender in the second quarter of an NFL football game in Foxborough, Mass., Sunday, Dec. 16, 2012. (AP Photo/Elise Amendola)

Carolina Panthers fullback Mike Tolbert sails over the top of the San Diego Chargers defense to score a touchdown during the first half of a NFL football game Sunday, Dec. 16, 2012, in San Diego. (AP Photo/Gregory Bull)

ATLANTA, GA - DECEMBER 16: A member of the Atlanta Falcons Cheerleaders performs during the game against the New York Giants at the Georgia Dome on December 16, 2012 in Atlanta, Georgia (Photo by Scott Cunningham/Getty Images)

Denver Broncos running back Knowshon Moreno leaps into the air to celebrate his touchdown during the second half of an NFL football game against the Baltimore Ravens in Baltimore, Sunday, Dec. 16, 2012. (AP Photo/Nick Wass)

Atlanta Falcons cheerleaders perform during the first half of an NFL football game against the New York Giants, Sunday, Dec. 16, 2012, in Atlanta. (AP Photo/Rich Addicks)

Tampa Bay Buccaneers defensive back Anthony Gaitor (26) breaks up a pass intended for New Orleans Saints wide receiver Lance Moore (16) in the first half of an NFL football game at the Mercedes-Benz Superdome in New Orleans, Sunday, Dec. 16, 2012. (AP Photo/Bill Feig)

Minnesota Vikings quarterback Christian Ponder spikes the ball after scoring on a 5-yard run during the first quarter of an NFL football game against the St. Louis Rams Sunday, Dec. 16, 2012, in St. Louis. (AP Photo/Tom Gannam)

Drake forward Morgan Reid, center, fights for a rebound with Iowa guard Kali Peschel, left, and guard Trisha Nesbitt, right, during the first half of an NCAA college basketball game, Sunday, Dec. 16, 2012, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)

Carolina Panthers wide receiver Steve Smith tumbles into the end zone with a touchdown reception against the San Diego Chargers during the second half of a NFL football game Sunday, Dec. 16, 2012, in San Diego. (AP Photo/Denis Poroy)

ARLINGTON, TX - DECEMBER 16: A Dallas Cowboys Cheerleader performs as the Dallas Cowboys take on the Pittsburgh Steelers at Cowboys Stadium on December 16, 2012 in Arlington, Texas. The Dallas Cowboys beat the Pittsburgh Steelers 27-24. (Photo by Tom Pennington/Getty Images)

HOUSTON, TX - DECEMBER 16: A Houston Texans cheerleader performs for the fans during the game against the Indianapolis Colts at Reliant Stadium on December 16, 2012 in Houston, Texas. (Photo by Scott Halleran/Getty Images)

HOUSTON, TX - DECEMBER 16: A Houston Texans cheerleader performs for the fans during the game against the Indianapolis Colts at Reliant Stadium on December 16, 2012 in Houston, Texas. (Photo by Scott Halleran/Getty Images)

HOUSTON, TX - DECEMBER 16: Houston Texans cheerleaders performs for the fans during the game against the Indianapolis Colts at Reliant Stadium on December 16, 2012 in Houston, Texas. (Photo by Scott Halleran/Getty Images)

A Dallas Cowboys cheerleader dances during the second half of an NFL football game against the Pittsburgh Steelers Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

A member of the Dallas Cowboys cheerleaders performs during an NFL football game against the Pittsburgh Steelers Sunday, Dec. 16, 2012, in Arlington, Texas. The Cowboys won 27-24. (AP Photo/Tony Gutierrez)

Dallas Cowboys cheerleaders jump and dance before an NFL football game Sunday, Dec. 16, 2012 in Arlington, Texas. (AP Photo/LM Otero)

An Arizona Cardinals cheerleader performs during the second half in an NFL football game between the Cardinals and the Detroit Lions Sunday Dec. 16, 2012, in Glendale, Ariz. The Cardinals defeated the Lions 38-10.(AP Photo/Ross D. Franklin)

An Arizona Cardinals cheerleader performs during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 16, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

An Arizona Cardinals cheerleader performs during the first half of an NFL football game against the Detroit Lions, Sunday, Dec. 16, 2012, in Glendale, Ariz. (AP Photo/Matt York)

CORRECTS TO A 52-YARD GAIN, NOT TOUCHDOWN - Minnesota Vikings running back Adrian Peterson, center, runs past St. Louis Rams defenders Robert Quinn, left, and Michael Brockers on his way to a 52-yard gain during the fourth quarter of an NFL football game Sunday, Dec. 16, 2012, in St. Louis. The Vikings won 36-22. (AP Photo/Seth Perlman)

St. Louis Rams cornerback Janoris Jenkins, bottom, brings down Minnesota Vikings running back Adrian Peterson (28) after Peterson ran 52 yards during the fourth quarter of an NFL football game, Sunday, Dec. 16, 2012, in St. Louis. The Vikings won 36-22. (AP Photo/St. Louis Post-Dispatch, Chris Lee) EDWARDSVILLE INTELLIGENCER OUT; THE ALTON TELEGRAPH OUT

An Oakland Raiders cheerleader performs before an NFL football game against the Kansas City Chiefs in Oakland, Calif., Sunday, Dec. 16, 2012. (AP Photo/Marcio Jose Sanchez)

Atlanta Falcons cheerleaders perform during the first half of an NFL football game against the New York Giants, Sunday, Dec. 16, 2012, in Atlanta. (AP Photo/Rich Addicks)

Houston Texans cheerleaders perform before an NFL football game against the Indianapolis Colts Sunday, Dec. 16, 2012, in Houston. (AP Photo/Dave Einsel)

St. Louis Rams cheerleaders perform during the second quarter of an NFL football game between the St. Louis Rams and the Minnesota Vikings Sunday, Dec. 16, 2012, in St. Louis. (AP Photo/Seth Perlman)

The Baltimore Ravens cheerleaders watch the action from the sidelines during the second half of an NFL football game against the Denver Broncos in Baltimore, Sunday, Dec. 16, 2012. (AP Photo/Nick Wass)

Green Bay Packers outside linebacker Clay Matthews (52) celebrates after sacking Chicago Bears quarterback Jay Cutler in the second half of an NFL football game in Chicago, Sunday, Dec. 16, 2012. (AP Photo/Nam Y. Huh)

Green Bay Packers outside linebacker Clay Matthews (52) celebrates after sacking Chicago Bears quarterback Jay Cutler in the second half of an NFL football game in Chicago, Sunday, Dec. 16, 2012. (AP Photo/Nam Y. Huh)

Green Bay Packers outside linebacker Clay Matthews (52) celebrates after sacking Chicago Bears quarterback Jay Cutler in the second half of an NFL football game in Chicago, Sunday, Dec. 16, 2012. (AP Photo/Nam Y. Huh)

Miami Dolphins Cheerleaders perform during the second half of an NFL football game between the Miami Dolphins and the Jacksonville Jaguars, Sunday, Dec. 16, 2012 in Miami. The Dolphins defeated the Jaguars 24-3. (AP Photo/Wilfredo Lee)

Atlanta Falcons cheerleaders perform during the first half of an NFL football game against the New York Giants, Sunday, Dec. 16, 2012, in Atlanta. (AP Photo/Rich Addicks)