Diamondbacks' Madison Bumgarner: Throws first bullpen

Bumgarner threw his first bullpen session of spring training Monday, Steve Gilbert of MLB.com reports.

Bumgarner said he felt better than he normally does for this time of year. The left-hander will work on locking down his changeup, a pitch that he's fought the last few years. "Earlier in the winter, it was as good as it's ever been, I thought I might have had a good one," Bumgarner said. "And then it disappeared on me like it always does." Bumgarner is expected to once again be the Diamondbacks' No. 1 starter.