UFC welterweight champion Georges St-Pierre defends his title against submission specialist Jake Shields. Champion Jose Aldo takes on Mark Hominick in the UFC's first ever 145-pound champion... Read allUFC welterweight champion Georges St-Pierre defends his title against submission specialist Jake Shields. Champion Jose Aldo takes on Mark Hominick in the UFC's first ever 145-pound championship fight plus Randy Couture battles Lyoto Machida.UFC welterweight champion Georges St-Pierre defends his title against submission specialist Jake Shields. Champion Jose Aldo takes on Mark Hominick in the UFC's first ever 145-pound championship fight plus Randy Couture battles Lyoto Machida.