Robbie Keane is confident Darren Bent can prove his worth at Tottenham.

"People have to understand that if you are not playing every week, it's very difficult," he said.

"I know from personal experience it's not easy to come in and just do something out of the ordinary. But Darren will be a great player for this club; there is no question about that.

"In football you just need that bit of luck or for someone to get injured to get a chance, and Darren hasn't had that opportunity yet."