Keith Thurman knows what it is like to share the ring with both Manny Pacquiao and Mario Barrios. Pacquiao makes a sensational return to boxing at the age of 46 this weekend when he challenges Barrios for his WBC welterweight title at the MGM Grand in Las Vegas.

A one-time light heavyweight fighter, Gibbons, 58, sees the 12-round match having the making of the Pacquiao-Keith Thurman bout six years ago when the Filipino got off to a blazing start behind a first-round knockdown, a statement that dictated the pace of the entire fight, which Pacquiao eventually won by split decision.