The England winger says they can win the UEFA Cup.
Speaking at the launch of EA Sports' Football Academy video game, he said: "I wouldn't say this season has been disappointing at all to be honest with you.
"The manager has come in and brought in a lot of new faces and everybody has been learning how to deal with each other.
"There's plenty of expectation here but I think people have learned success is going to take time and that it won't just happen overnight - that's the key factor.
"We all knew it would be a tough season but we're doing very well in the UEFA Cup at the moment and we're capable of going a lot further.
"We need to get a win away against Hamburg and then hopefully things will take care of themselves.
"We expect it to be tough over there but we'll go over there and play the best we can and give our fans 110%."