Dodgers closer Kenley Jansen has dropped 25 pounds since the end of last season and threw his first bullpen session Thursday since a heart procedure in November.
The procedure, known as an ablation, was Jansen's second heart operation in six years. It came after he experienced an atrial fibrillation episode in Denver this past August.
"I definitely feel great. Ready to roll," Jansen said at the team's FanFest on Saturday.