Big Fan
(2009)

After Philadelphia Phil reveals on the radio that Paul Aufiero (Oswalt) is the one attacked by Quantrell Bishop. 

Aufiero travels from New York to Philadelphia and goes incognito into a Philadelphia bar looking for Phil. Once he singles out who Phil is, Paul traps Phil in the bathroom and shoots him multiple times.  Once Paul's out of ammo, it's revealed that he was shooting paint (in NY Giants blue and red) and not bullets and runs out of the bar. 

As he attempts to run away, the police catch Paul and is sentenced jail time. 

When his best friend Sal comes to visit, he shows Paul the Giants' new schedule and they discuss what the season's record is going to be.

Thanks Joseph A!