"It has been a pleasant surprise," manager Don Mattingly said of the right-hander, who is 3-0 with a 1.25 ERA in 21 games.
"He's been really good and been a good citizen, no issues of any kind," said Mattingly. "He's been great. We've had injuries to Javy Guerra and Matt Guerrier for extended times, and Belly has given us a late-inning guy. He came in early in the year and we figured to use him in the sixth and seventh, but he's worked his way toward the end of the game. He's been solid. A nice surprise."
Belisario, who started his season late after he served a 25-game suspension for a positive cocaine test in 2010, has evolved into sharing setup duties with Josh Lindblom. Belisario has held opposing hitters to a .129 average, hasn't allowed any of the four inherited runners to score and has retired 17 of 21 first batters faced.
Belisario said he's even more focused on throwing strikes over the last two weeks as he's begun wearing prescription glasses while he pitches.