Ortiz surprised fans when he threw out the ceremonial first pitch at Fenway Park. . Boston played their final game of the season against the rival New York Yankees on Monday night. . It was Ortiz's first public appearance since being shot in June. . The former Red Sox star was shot in the back at a club in the Dominican Republic on June 9. . Ortiz addressed the Boston crowd before he threw the first pitch to former Red Sox catcher Jason Varitek. . I want to thank all of you for all the prayers. I really appreciate it. Thank you very much. I want to thank my former teammates for being there for me, David Ortiz, via statement . Also, I want to thank the Yankees, a lot of my boys over there and checked up on Big Papi. Thank you very much, appreciate it ... God bless you all. Go Sox. , David Ortiz, via statement. Police have determined that a hit man shot Ortiz by mistake. . Ortiz underwent three surgeries where he had some of his intestines and gallbladder removed.