It's not a sports injury if you hurt your finger playing video games. It's not.

Good point. NBA players have played with broken fingers.

As a guy who plays video games a lot and only likes volleyball as far as "real" sports go... I have yet to meet anyone who legitimately claims a sore thumb as a sports injury. Except the one and only Jon Arbuckle, who hurt his hand doing crosswords. In the words of Garfield, "Those 15-letter words can be brutal."