@sgphysiobarn: Using a massage ball for the rotator cuff works wonders! Do it before and/or after exercises like tennis, gym, boxing. It's also very useful if you are recovering from a shoulder injury, like Rotator Cuff Tendinitis.Just 2-3 minutes is enough (although I did say 5-10mins in the video)! #rotatorcuff #rotatorcufftendinitis #impingementsyndrome #massageball #physioleslie