Only comic Will Ferrell would ask tennis champ Roger Federer for help getting a better hotel room. The “Blades of Glory” star was overheard chatting to the Swiss star in the players’ hallway at the US Open last Thursday about Art Basel in Switzerland. A witness said: “Will was telling Roger he went to Art Basel this summer and stayed at the Hilton by the train station. He said he was unimpressed with his room, and then asked Roger if he could get him an upgrade for next year.”