NEW YORK -- Mets reliever Bobby Parnell threw his first live batting-practice session Sunday as he works to return from right shoulder tendinitis. Parnell has been sidelined since Aug. 17 and expects to be active when rosters expand Tuesday.
Parnell, who underwent Tommy John surgery in April 2014, owns a 5.59 ERA in 23 appearances for the Mets this season. At the height of his struggles late last month, the Mets gave him a choice between the disabled list, an option to Triple-A Las Vegas or a designation for assignment.
One of the longest-tenured Mets, Parnell will now spend September trying to prove he belongs in the playoff bullpen.