Man Utd star Rooney in fatty war with Man City fan
Rooney, 27, fired back at Carl Foster who describes himself as season ticket holder for lifelong rivals City.
Rooney fumed: "U have more fat on ur face than i have on my body fatso. Go the gym. Fat boy."
But the plan backfired when Mr Foster bragged that his Twitter spat had gained him more followers.
He tweeted: "Got about 50 new follows after Wayne's little bite before!"