Doubront (elbow) could begin incorporating curveballs in his next bullpen sessions, John Hickey of the Bay Area News Group reports.

EDGE Analysis

The left-hander threw his first bullpen session since Tommy John surgery back in mid-February, and it seems that each session since then has gone without a hitch. If everything goes as planned, Doubront should be able to progress to live BP sessions later in the month with a clearer timetable for return to follow each step in his recovery.