Injury Relapse The word ‘Relapse’ to a health care professional is not a very nice one to hear, it means that for some reason, the client has re-injured themselves in the same place either during or after recovery. Michael Owen is a classic example of a person that had a lot of injury relapses, in this England striker’s case it was his Hamstring. We hate to see it happen as understandably it can be very disheartening for the client as they are often doing really well when the