The Giants went to Philadelphia and got punched in the mouth. Then one of their fans did, too.

A Giants fan wearing a No. 10 Eli Manning jersey got knocked out by an Eagles fan in the aftermath of Monday night’s 27-7 loss, according to footage posted to YouTube.

A video from a Philadelphia transit stop shows the Giants supporter yelling at some Eagles fans, repeatedly saying, “C’mon now.”

One of the fans took on the challenge, telling the Giants backer to “shut the f—k up” before laying him out with two punches. It appears the Eagles fan spat on the stunned Manning fan as he walked by.