"Wayne and Carlos (Tevez) have struck up a really good partnership - so with Wayne coming back and Louis Saha fit again, the manager has a lot of options," said Giggs.
"It is great to have Wayne back. Before he got injured, he was on an excellent run of form. He is a quality player and he is always a threat.
"The key for us is to perform to our highest level; if teams come to Old Trafford and we are not at our best, it only encourages them.
"If we are playing at our best, playing at a high tempo, as Manchester United can, we will cause teams problems and get the games won. It is as simple as that."