Terence Crawford
On 28 June 2014 Gamboa faced off against undefeated WBO titlist Terence Crawford on HBO Boxing After Dark. Gamboa got off to a hot start, winning the first four rounds and using his superior foot speed and hand speed but was caught and dropped by a right hook in the fifth round. Gamboa continued to fight back but was dropped again in the eighth and finally was stopped in the ninth round after two knockdowns and a huge right hook by Crawford. "We were just two warriors in the ring trying to get the victory, and he won." stated Gamboa after the bout. This was Gamboa's first loss as a professional ending his undefeated streak.