And Giggs believes the Dutchman could make all the difference in Unitedâ€™s bid to reclaim the title from their neighbours.
"Heâ€™s one that we are glad to have," he said. "Heâ€™s not surprised me because I knew that, at 29, he was a ready-made, experienced world-class player.
"He just has that bit of class that can make a difference â€“ like it did on Sunday and in other games.
"You see it in training, you see it in games, heâ€™s just a brilliant player.
"The way we performed at City should give us a boost. The squad is looking good. Nemanja Vidic is coming back, our captain. Everything is in place for the busy Christmas period."