[fusion_youtube id=”r1xbCfuiUXk” alignment=”center” width=”800″ height=”450″ autoplay=”false” api_params=”&rel=0″ hide_on_mobile=”small-visibility,medium-visibility,large-visibility” class=”” css_id=””][/fusion_youtube]

 

It wasn’t a coincidence when Roger Federer came back after knee surgery and won grand slams again. Check out his big change to a half loop on the forehand.