Brock Lesnar’s immense size and nearly-unmatched athleticism earned him the moniker “The Next Big Thing.” On August 25, 2002, Lesnar proved he was indeed, the next big thing when he defeated The Rock for the WWE Championship at SummerSlam. Lesnar went on to hold the WWE Championship for nearly three months, successfully defending it against the likes of Undertaker (in a Hell in a Cell match) and Edge.