Anderson allowed a single back to the box by Jonny Gomes with two outs in the third inning, then in the process of trying to field the ball Anderson kicked the ball and appeared to land awkwardly on his left foot.
After calling trainer Stan Conte and manager Don Mattingly to the mound, Anderson was removed from the game. Chin-hui Tsao came on in relief.
Anderson will be reevaluated on Wednesday, including an MRI exam.
On Tuesday night, he left the ballpark in a walking boot.
Hello darkness my old friend...think I caught before it's anything too serious. pic.twitter.com/4Gsbl3Rfyx— Brett Anderson (@BrettAnderson35) July 22, 2015
At 2⅔ innings, Tuesday is the shortest outing of the season for the left-hander Anderson, who has been otherwise healthy all season. Anderson averaged 52 innings per year from 2011-2014, but his 19 starts this season are his most since 2010, and his 110⅔ innings are his most since that season as well.
Anderson allowed three runs on five hits on Tuesday, with two walks and two strikeouts.
The extent of this injury for Anderson isn't yet known, but if it extends past one start the Dodgers could be in trouble. The club has off days on Monday and Thursday so they can maneuver their rotation accordingly, but Anderson's spot comes up again on Sunday.