Porter led the Arena Football League in interceptions in back-to-back seasons from 2001 and 2002. Porter picked off 12 passes in 2001 and recorded 10 more in 2002. In Week 4 of the 2003 Arena Football League season, Porter made a clutch interception against the Los Angeles Avengers at the goal line to seal the Chicago Rush victory. The Rush entered the game 0-3 playing 3-0 Los Angeles, which gave Chicago its first win of the 2003 season while handing the Avengers their first defeat of the year.