He returned in 2003 , pitching most of the season with the AAA Albuquerque Isotopes .
Grilli missed the entire 2002 minor - league season following Tommy John surgery on his pitching elbow .
Grilli returned in 2003 , pitching most of the season with the AAA Albuquerque Isotopes .
Grilli missed the entire 2002 minor - league season following Tommy John surgery on his pitching elbow .