Brett Anderson (finger) threw 3 2/3 scoreless innings Wednesday in his rehab debut at Triple-A Colorado Springs. Anderson struck out four and yielded just two hits in the impressive outing. He threw 39 of his 59 pitches for strikes and touched 90 mph with his fastball. The left-hander could be an option for the Rockies' starting rotation shortly after the All-Star break. He's been out since mid-April with a fractured left index finger.