Amir Khan came back from a knockdown to unanimously outpoint fast-finishing Julio Diaz on Saturday night in a welterweight fight at Motorpoint Arena.
Khan, trying to rebound after consecutive losses to Lamont Peterson and Danny Garcia in the last 16 months, was cruising early against Diaz, the aging former two-time world lightweight champ.
Then Diaz exposed Khan's weakness by dumping him with a left hook in the fourth round, and staggered the former world light-welter champ with hooks in the eighth, 10th and 11th rounds.
Khan (28-3, 19 KO) received winning scores of 115-113, 115-112, 114-113.
Diaz's dropped to 40-8-1.