The news on Brandon Morrow might not be so positive, but the Cubs did receive very good reports on their injured ace this weekend.
Jon Lester threw a simulated game against a couple of his Cubs teammates Saturday morning at Wrigley Field, tossing 45 pitches in total. In between "innings" of the sim game, Lester was also working out on the side in an effort to ramp up the intensity and simulate more of a game feel to see how his injured left hamstring will respond.
Lester initially went on the injured list two weeks ago after he was removed in the third inning of the Cubs' home opener on April 8, when he hurt his hamstring running the bases.
"[The sim game went] really well," Joe Maddon said Saturday morning. "I thought he looked very good. Pretty amazing where he's at already. ... Did not hold back at all, so it's very encouraging."
Maddon also said he thought Lester's stuff looked good from where he was watching behind the catcher and pointed out that the Cubs ace was "hypercritical of himself," indicating that Lester's focus was on competing and making good pitches instead of worrying about his hamstring or any physical limitations.
The Cubs don't have a next step mapped out for Lester just yet, as they will see how the 35-year-old feels Sunday after the "rigorous" activity Saturday.
There is currently no timetable for his return, but Maddon didn't rule out the possibility that Lester would be able to pitch sometime in the coming week.
The Cubs rotation has looked very good since Lester went down — combining for a 0.96 ERA in the last 7 games before Yu Darvish struggled early in Saturday's tilt with the Diamondbacks.
Tyler Chatwood gets the ball for the Cubs Sunday to close out the series against Arizona and then the team has Jose Quintana and Cole Hamels lined up for the first two games of the series against the Dodgers when they come to town Tuesday night.
The Cubs won't need a fifth starter in the rotation again until next Saturday, April 27, so that could be a date to circle for a possible Lester return if all continues to go well in the veteran's recovery.Click here to download the new MyTeams App by NBC Sports! Receive comprehensive coverage of your teams and stream the Cubs easily on your device.