Dubon jammed his left thumb in Friday's game against the Diamondbacks, Brian McTaggart of MLB.com reports.
Dubon hurt his thumb sliding into first base late in the game and was removed after going 3-for-3 with two runs and an RBI. He had X-rays after the contest that came back clean, and he told reporters that he will be fine. Dubon may be unavailable Saturday, but a stint on the injured list seems unlikely.