CHICAGO — Jon Lester expects to make his next start for the Cubs despite still having some pain in his lower back.

"I'll be fine," Lester said. "I'll pitch whenever they tell me to pitch. ... I don't feel great but I'm going to pitch. ... We have good drugs and good doctors."

Lester left Monday's start in the sixth inning with what the Cubs called lower back tightness. He said the situation still was bothering him when he woke up Tuesday but he believes it can be handled through medication and therapy.

Lester is on track to start Saturday against the Reds but manager Joe Maddon said he may consider giving him some extra rest if Major League Baseball postpones the Thursday makeup game in Washington because of Hurricane Florence.

That would allow Maddon to pitch Mike Montgomery Friday instead of Thursday, with Cole Hamels then moving to Saturday. Maddon could push Lester's next start back until Tuesday in Arizona without disrupting the schedule of the other starters, if the Cubs don't play Thursday.

In other health updates for Cubs:

--Kyle Schwarber is battling a lower-back issue and wasn't available Tuesday night, according to Maddon. He said he sent him to bat as a pinch hitter Monday only as a decoy, hoping Craig Counsell would bring Josh Hader in to face him. He wanted Hader to throw so many pitches in that outing he would be unavailable the rest of the series but he only needed 24 pitches to strike out all six Cubs he faced. He should be available Wednesday, if not Tuesday.

--Brandon Morrow (bone bruise in his elbow) felt good after throwing Monday and could throw again Wednesday. The Cubs don't know if he will be back before season's end.

--Jason Heyward (hamstring) ran in the outfield and appears to be making progress in getting cleared for baseball activity. Maddon is eager to get him back but a setback at this point could leave Heyward out the rest of the season.

--The Cubs have said left-hander Drew Smyly, who has completed his recovery from Tommy John surgery, won't pitch this season. "If the circumstances were different, I could pitch," Smyly said. "But the team's in a real tight race now. I wasn't able to play in any minor-league games. I don't know if the risk versus the reward would have been there. I get it."