Roger Federer Forehand slow motion from practice session-哔哩哔哩
WATCH: Roger Federer Makes Slight Change in His Service Motion To Put Less Strain on His Back - EssentiallySports
Federer Practice Slow motion - YouTube
Roger Federer second serve in super slow motion - who has the best 2nd serve on the tour? Follow @lovetennis.com_ for more tennis footage 👍 . . . #tennis... | By Tennis Pro TV | Facebook
Roger Federer Forehand slow motion from practice session Cincinnati 2014 - video Dailymotion