Smyly exited Saturday's start against the Rangers with a left finger injury, Alex Pavlovic of NBC Sports Bay Area reports.
Though he surrendered two runs during the opening frame, the left-hander was pitching well with seven strikeouts through four innings, but he was unable to start the fifth frame. It's unclear if the finger issue -- which was officially labeled left finger discomfort, per John Shea of the San Francisco Chronicle -- will impact Smyly's availability for his next start.