Roger Federer and Milos Raonic team up with superheroes

Roger Federer is no stranger to performing superhuman feats on the tennis court so it wasn't a surprise when he and Milos Raonic were joined by a couple of superheros during 'Kids Day' ahead of the Australian Open.As the two tennis stars limbered up in front of a packed arena, Marvel heroes Spider-Man and Thor had the chance to show off their skills with the racket during the family-friendly event.Federer teamed up with Spider-Man as Raonic had a helping hand from Norse God Thor. Tennis ...