of pro football

Just like any other sport, that's the name of the game.

Rooney and Ronaldo are supposed to be friends - they shared a joke before the game in the tunnel.
But there was nothing friendly about the way Manchester United's Portuguese winger got his club-mate sent off.
Chelsea defender Carvalho over-reacted and Ronaldo sprinted to the referee, apparently to demand a red card.
Rooney turned to his Manchester United team-mate and pushed him away. - via soccernet

Oh Ronaldo, what did you say to the referee?
We go back Man U and talk.