(R-L) Josesito Lopez lands a right to the head of Canelo Alvarez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a left to the head of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a left to the head of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a right uppercut against Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a left to the head of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
: A Mexican flag is waved in the corner of Canelo Alvarez before his WBC super welterweight title defense against Josesito Lopez at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a left to the head of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Josesito Lopez lands a right to the head of Canelo Alvarez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Josesito Lopez lands a left to the head of Canelo Alvarez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez reacts after knocking out Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a left to the head of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a right to the body of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez enters the arena before his WBC super welterweight title defense against Josesito Lopez at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Josesito Lopez prepares to enter the ring before challenging Canelo Alvarez in a WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Oscar De La Hoya attends the WBC super welterweight title fight between Canelo Alvarez and Josesito Lopez at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez reacts after knocking out Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez (L) reacts after knocking out Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Referee Joe Cortez (C) raises the hands of Canelo Alvarez (L) and promoter Oscar De La Hoya after Alvarez's knockout victory over Josesito Lopez at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez reacts after knocking out Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez lands a right to the head of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Josesito Lopez receives a count from referee Joe Cortez after being knocked down by Canelo Alvarez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez knocks down Josesito Lopez with a right to the head during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
Canelo Alvarez v Josesito Lopez
Canelo Alvarez knocks lands a left to the body of Josesito Lopez during their WBC super welterweight title fight at MGM Grand Garden Arena on September 15, 2012 in Las Vegas, Nevada. (Photo by Josh Hedges/Getty Images)
