Left-handed pitcher Jon Lester has retired from baseball with 200 wins and World Series rings with the Red Sox and Cubs.
The Cubs sent struggling second baseman Addison Russell to the minors on Wednesday. Also, All-Star third baseman Kris Bryant left early against the Giants with right knee soreness.
Back from a tiring stretch before the All-Star break, the Cubs look ready to bust out for some impressive numbers on the scoreboard.
Between his work on the mound and his clubhouse presence, the veteran Cubs lefty has more than lived up to his big contract.
Cubs manager Joe Maddon said injured ace Jon Lester looked "very good" in a simulated game and it's possible the left-hander could return from his hamstring injury as soon as the team's next series.
Jon Lester was placed on the 10-day injured list because of a hamstring injury suffered in Monday's home opener against the Pirates.