Manchester City striker Carlos Tevez insists friendships will count for nothing when they face Manchester United in tomorrow's Carling Cup semifinal. The Argentine striker will also be determined to prove a point to his former club after leaving United for City over the summer.

"What happened at Old Trafford earlier this season is still in our heads and this is the moment for revenge," Tevez told the Daily Mirror.

"I want to play in this match for many reasons. It's a semi-final, a derby and there's a bitter rivalry between the two clubs.

"I believe this is a good moment for us to play a local rival like United, who never normally give anything to their opponents.

"In a semi-final over two matches and in a derby, anything is possible. But I think the key will be the return game at Old Trafford and we must ensure we get a good result at home."