Show of unity from Swiss aces

Roger Federer and Stan Wawrinka appeared to have put any recent differences behind them after the world number two posted a picture on Twitter of the Davis Cup team-mates looking all smiles.

Reports emerged yesterday that the pair had an argument following their semi-final at the ATP World Tour Finals last week, with the suggestion that Federer’s wife Mirka may have heckled Wawrinka during the last-four encounter.