VIDEO: Federer issues volleying challenge as part of #Tennisathome, Djokovic, Kenin respond

Having previously participated in the #Tennisathome campaign, Federer returned to social media to issue another challenge to his fans. The Swiss superstar found a wall and proceeded to hit numerous volleys at a rapid pace. The video began when Federer was already hitting the volleys, and he was still doing so when it ended.

Federer encouraged fans to do the same, and offered to provide tips should they reply with a similar video. The 38-year old also tagged numerous celebrities in his post. These included Novak Djokovic, Cristiano Ronaldo, Bill Gates and even Dwayne "The Rock" Johnson.

Staying true to his word, Federer not only replied to fans who posted videos but also critiqued their choice of hat. Sporting a Panama hat in his original video, the former World No.1 included the caption "Choose your hats wisely".

[embed]https://twitter.com/rogerfederer/status/1247526856326172673[/embed]

[embed]https://twitter.com/rogerfederer/status/1247527223738814465[/embed]

Other professional tennis players also got in on the act. World No.1 Novak Djokovic responded on his Instagram account, although he forgot to wear a hat.

[embed]https://twitter.com/NDjokofan/status/1247531735438385156[/embed]