In the video, Federer practices the “tweener” shot, a stroke played through the legs while facing away from the net which he has popularized and employed multiple times during his career.
The 38-year-old also displayed some forward-facing “between-the-legs” shots and behind-the-back shots.
The video has more than 3.6 million views at the time of writing.
Eight of Federer’s 20 Grand Slam victories have come at Wimbledon, but he might have to wait longer to try to add to his tally in London.
Officials at the All England Club are meeting Wednesday to make a decision on the historic tournament, which is set to run from June 29 to July 12.