Roger Federer was at his self-deprecating best when he tweeted how his wife feels about him returning to pro tennis

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• Roger Federer cracked a joke that left his Twitter fans in stitches.
• The 20-time Grand Slam tennis champion returns to competition on Wednesday after three months away from the sport.
• Federer was asked how his wife feels about him competing once again - and joked that she was just happy to have him out of the house.

Roger Federer was at his self-deprecating best when he tweeted how his wife feels about him returning to competitive tennis.

The 20-time Grand Slam champion has not played a single match since his second round loss to Thanasi Kokkinakis in March.

Federer skipped the clay season so he could be as fit and as fresh as possible for the Wimbledon Championships, a tournament he has won a record eight times - and returns to the court at the Stuttgart Open. He takes on German competitor Mischa Zverev on Wednesday.

During his time away from the sport, you would imagine Federer would be sticking to his diet plan and training hard to ensure he remains at the top of his game.

But when the 36-year-old was asked by a fan how his wife Mirka Federer feels about his return to competition, Federer tweeted this hilarious reply:

Roger Federer/Twitter

It is not the first time Federer has left his fans in stitches.

He was recently interviewed by GQ magazine, and Federer, renowned for his James Bond looks, confessed that he is not as big a style icon as everybody believes.

In fact, it may well be the opposite as he recalled an "embarrassing" wardrobe malfunction at an official Wimbledon event in 2007.

Federer said he "was so excited" he won that he forgot how to dress himself and put his trousers on the wrong way round - and didn't realise until it was too late.

"I put my hands in my pockets [and] I realised that the pockets are going backwards. I was like: 'It's too late! I can't change them anymore!' I lifted the trophy, and the pants were on backwards.

"You could hardly see it, but I think one British media picked it up and were like: 'What's going on? He's got the zipper at the back.'"

Here's the photographic proof of Federer's faux pas.

Ryan Pierse/Getty Images