ROCKIES AT CUBS
The facts: 1:20 p.m., CSN, 720-AM.
The pitchers: Tyler Matzek (2-5, 4.39 ERA) vs. Jake Arrieta (5-2, 2.18).
Updated: September 1, 2014 8:10AM
It’s not exactly the ideal time for the Cubs to consider shelving another established piece of their rotation.
But Edwin Jackson has regressed over the last month. And with bullpen maintenance already a concern, they might be forced to consider at least a temporary alternative to running the $52 million veteran to the mound every fifth day.
“We have to try to put our finger on whatever it is that’s the stumbling block,” manager Rick Renteria said. “[With pitching coach Chris Bosio] and [assistant pitching coach] Lester [Strode] and just in general conversations, we’ll see if we can get to the crux of it with him.”
Jackson (5-11, 5.79 ERA) has only five quality starts in 22 outings and just one since May 17. And he hasn’t pitched more than 51/3 innings in any of his last four outings.
His 105 pitches Tuesday night were the most he has thrown in 10 starts, but they only got him through four innings.
“It’s been a tough stretch for me lately,” said Jackson, who’s 13-29 with a 5.31 ERA in 53 starts since signing a four-year deal with the Cubs in 2013. “Whatever the case may be, it seems like anything that can happen does happen. It’s even more frustrating when you feel good and nice and strong, and you continue to have outings like this.”
Renteria said there are no immediate plans to pull Jackson from the rotation. “He’s going to get the ball again and give us another shot the next time around,” he said.
After the heaviest workload of the season for the bullpen Tuesday night, the Cubs recalled lefty starter Chris Rusin from Class AAA Iowa to reinforce the bullpen Wednesday. Righty Blake Parker was optioned to Iowa to make room.
◆ The Cubs completed the Darwin Barney trade with the Dodgers, getting Class A pitching prospect Jonathan Martinez, 20, a righty who was 7-5 with a 3.47 ERA in 19 starts for Great Lakes of the Midwest League. The Cubs also covered all but $500,000 of the remaining $770,000 on Barney’s contract.