Gerald Harris delivers devastating slam knockout at Legacy FC 63

Gerald Harris showed he still has some magic left at Legacy FC 63.

With one mighty slam, Harris (23-5) knocked Aaron Cobb out cold en route to a first-round KO Friday night. It was Harris' first fight in over three years for the 37-year-old.

Check it out below.

Gerald Harris vs Aaron Cobb #Legacy63 @legacyfighting #RIP More Angles pic.twitter.com/FVMjFu3usN

— Zombie Prophet (@ZPGIFs) December 3, 2016

The fight was contested at heavyweight because Cobb reportedly missed weight by 50 pounds.