Once seriously injured, almost always injured. I speak from experience. Suffering a serious injury makes you far more injury prone. Difficult to get over. 
you should be more encouraging :P
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Tough when I've gone through so many injuries.
Here's some advice: don't come back too early from an injury. Rehab, rehab, rehab. Rehab until you have full strength in the injured area. If you're not 100%, you're likely to overcompensate and injure your healthy muscles.