Molina winced on a swing-and-miss in the fourth inning of Monday night’s 8-6 loss to the Cubs, and then was checked by a trainer and manager Mike Matheny. The seven-time All-Star was removed for a pinch hitter in the sixth.
Molina missed the last part of the regular season due to a strained ligament in his thumb. He is 1 for 8 with two strikeouts in the series.
The Cubs also were missing a key player. Shortstop Addison Russell was out of the lineup after he left Game 3 with tightness in his left hamstring.