Brock Lesnar

Brock Lesnar followed becoming NCAA Heavyweight Champion at the University of Minnesota by immediately becoming WWE's next big thing. He would dominate WWE for two years before deciding to leave in search of other opportunities. Brock would make his mark in the UFC, where he would win the UFC Heavyweight Championship. He returned to WWE in 2011, and would go on to end the Undertaker's Wrestlemania streak at Wrestlemania 30 three years later.