Manager Joe Maddon was pleased with the results of Lester's (hamstring) simulated game Saturday and said "it's not impossible" for the lefty to return from the 10-day injured list during the upcoming week, Jordan Bastian of MLB.com reports.
Lester experienced no complications while using his full arsenal in the 45-pitch outing, but the Cubs will wait and see how he feels Sunday before deciding his next step. Assuming his checkup with team doctors goes well, Lester would presumably throw a bullpen session Monday or Tuesday before checking back into the rotation as soon as Thursday against the Dodgers.