
1) DC Comics supervillain 2) Fictional male sportsperson
Found on
https://www.crosswordclues.com/clue/sportsmaster

==History== ===Lawrence `Crusher` Crock=== He was the foe of the original Green Lantern as well as Wildcat. He was first known as Crusher Crock, a frustrated athlete who turns to a life of crime. He was a member of different incarnations of the Injustice Society. He helped capture the JSA using an exploding ball, after which they were hypnotized.....
Found on
http://en.wikipedia.org/wiki/Sportsmaster
No exact match found.