David Ortiz underwent a SECOND surgery Monday night in Boston to repair injuries he suffered after being shot in the back on Sunday ... his wife, Tiffany Ortiz, announced.
But, she adds Big Papi is now doing fine and is "resting comfortably."
The MLB legend was nearly killed after a man opened fire on his back while he was outside of a nightclub in the Dominican Republic over the weekend.
Ortiz was rushed to the hospital ... and doctors say they had to remove his gallbladder in an attempt to repair damage to his liver and both of his small and large intestines.