Roger Federer has criticised the conduct of umpire Cedric Mourier in the wake of his row with Stanislas Wawrinka at the London ATP Tour Finals.
Federer clashed with Wawrinka in the gym area behind the scenes at the O2 Arena on Saturday night, after Federer won a tense deciding set. Wawrinka had complained during the third set that he was being disturbed by heckles from Federer's wife, Mirka - something which was subsequently confirmed by video footage.
Mourier subsequently gave an interview confirming Mirka had heckled Wawrinka on Tuesday, a move which has irritated both players, who have now met up with the Switzerland team for the Davis Cup final against France, which starts on Friday.
"The umpire is not allowed to do an interview in the first place - whether he mentions my wife's name or not, it doesn't matter," Federer said. "Everything has been said and it's totally relaxed."
"We had a conversation after the match and everything is totally relaxed now. I wanted to see if there was any hard feelings because it was one of the loudest moments of the match, around 5-4, 5-5 in that set. There was a lot of noise but there are no hard feelings. We are having a good time here - we are friends, not enemies. He had a moment, a situation, but everyone has done a very nice job of making it really big.
Wawrinka added: "I'm not sure the umpire is allowed to talk, but that is his problem. We have no problem together - we spoke about it straight after the match.
"I don't think the umpire was doing a great job in the match - it was quite a mess already. It has become a big deal but for us, it's nothing. It took us five minutes to talk about that."
Here's the video footage of Mirka Federer heckling Wawrinka:
The details of the bust-up between Roger Federer and Stan Wawrinka at the Barclays ATP World Tour Finals on Saturday night became clearer yesterday as well-placed sources attested that the two men found themselves "thrashing out their differences" in the O2 Arena's gym in London after their semi-final.
Switzerland's potential Davis Cup fairytale this weekend has become clouded by uncertainty over the fitness of Roger Federer and suggestions of strained relations between the all-time great and his team mate Stanislas Wawrinka.