Kennedy threw 25 pitches during a bullpen session Tuesday. The right-hander said everything was fine and he would work off a mound again Friday.
The 24-year-old Kennedy was pitching for Triple-A Scranton/Wilkes-Barre when he experienced numbness in his pitching hand. He hopes to pitch in a minor league game before the season ends.
The surgery was performed by Dr. George Todd, who operated on former Yankees pitcher David Cone's aneurysm in 1996.