I think this year I narrowly avoided getting injured right before the tennis season.
It's happened at least twice now - there's a bunch of rain so I don't get to play, then as soon as the rain goes away I overexert and injure something because I'm trying to jump back into it. This year I made the same mistake, but all I got was some mild tennis elbow that I think I've handled by using a vibration dampener and a compression sleeve.
I just really gotta remember this for next year and avoid it.