Bent has scored an incredible 29 goals in just 44 appearances for the club - an average of more than a goal every two games.
And Gyan told safc.com: "I am looking forward to playing with Darren.
"He is a very good player with Sunderland and the national team; he is doing so well. Darren did a great job last season. I was following him; people rated Sunderland as an underdog but he was scoring all the time.
"Darren is fantastic. I'm now here and I wish to play with him but the coach will decide who plays. I'm a player of Sunderland now and I have to give my best, then the coach will decide."