Anderson (knee) tossed a scoreless inning of relief in Thursday's 10-3 loss to the Diamondbacks. He gave up one hit and one walk and struck out three batters.
Anderson was activated from the disabled list prior to the series finale following a successful rehab outing June 18, but it looks like he'll have to settle for bullpen duty for the time being. The left-hander's replacement in the rotation, Jeff Hoffman, had allowed three or fewer runs in five starts before getting torched by the Diamondbacks for nine runs in 3.2 innings Wednesday, but Hoffman should get at least one more opportunity to right the ship before Rockies manager Bud Black would consider going back to Anderson as the club's fifth starter. As he demonstrated Thursday, Anderson offers more strikeout upside than most of the Rockies' other starting options, but he's had a difficult time keeping the ball in the yard, which has kept his ERA at a bloated 5.75 on the season.