This, setting up a bout with former welterweight champion Terence Crawford in September.

Cuba's Scull, who had an advantage in height and reach over Alvarez, was unable to find an answer to the Mexican's methodical stalking and effective body blows as he suffered the first loss of his professional boxing career.

"For me it's a boring fight. (Scull was) not trying to win, just trying to survive. I hate these kinds of fights," Alvarez said in his post-fight interview after all three judges awarded him the victory (115-113, 116-112, 119-109).

Alvarez, who was stripped of the IBF strap last year after choosing to fight Edgar Berlanga over the sanctioning body's number-one contender Scull, has now become the undisputed 168-pound champion for the second time.

Scull's quick movements were not enough to evade Alvarez's steady onslaught early on as the Mexican landed strong body blows in the second and fourth rounds, leaving Scull momentarily off balance.

--Reuters--