FORT MYERS, Fla. — The Red Sox encouraged Felix Doubront to arrive early for spring training to get started on a conditioning program.
The lefthander did better than that. He spent three weeks in December working out in Sarasota, Fla., at a facility run by IMG. He returned for four more weeks after a break for the holidays. Outside of three weeks, Doubront spent little time at home in Venezuela.
Doubront made his first appearance at JetBlue Park Thursday morning and will throw in the bullpen Friday. He said it would be his ninth time throwing off the mound.
“I’m growing up,” said Doubront, who spoke with what for him was unusual confidence. Full story for BostonGlobe.com subscribers.