An international soccer star found a new way to get under his opponent's skin ... by twisting it!!!
Real Madrid defender Antonio Rudiger did something we've never before seen on the soccer pitch ... he gave his former teammate turned Atletico rival Alvaro Morata a "titty twister" during the match!
It all happened during the Spanish Super Cup semifinals earlier this week.
During the game, Rudiger was captured on video approaching Morata and grabbing and twisting his nipple as the forward reacted with anger, pushing AR.