Photos:: Floyd Mayweather Jr. defeats Marcos Maidana

Floyd Mayweather Jr. lands a jab to the body of Marcos Maidana in their welterweight title fight on Saturday night at the MGM Grand Garden Arena in Las Vegas.  (Al Bello / Getty Images)

Marcos Maidana works to the body of Floyd Mayweather Jr. during their WBC/WBA welterweight championship fight on Saturday night at the MGM Grand Garden Arena in Las Vegas.   (Al Bello / Getty Images)

Marcos Maidana connects with a left to the face of Floyd Mayweather Jr. on Saturday night.  (Al Bello / Getty Images)

Floyd Mayweather Jr. lands a right to the face of Marcos Maidana during their world welterweight title fight on Saturday night at the MGM Grand Garden Arena in Las Vegas.   (Ethan Miller / Getty Images)

Floyd Mayweather Jr. catches his breath between rounds during the world welterweight title fight against Marcos Maidana.   (Al Bello / Getty Images)

Floyd Mayweather Jr. throws a left hook against Marcos Maidana during their welterweight title fight.   (John Locher / Associated Press)

Referee Kenny Bayless talks to Floyd Mayweather Jr., right, who claimed Marcos Maidana bit his glove in the eighth round during a clench.   (John Locher / Associated Press)

Referee Kenny Bayless examines the left glove of Floyd Mayweather Jr., who claimed it was bitten by opponent Marcos Maidana.  (John Locher / Associated Press)

Marcos Maidana sends Floyd Mayweather Jr. reeling with a combination during their welterweight championship bout.   (John Locher / Associated Press)

Marcos Maidana bends back Floyd Mayweather Jr. with a forearm to the neck during their title fight.   (Ethan Miller / Getty Images)

Marcos Maidana lands a left to the head of Floyd Mayweather Jr. on Saturday night during their title fight.   (John Locher / Associated Press)

Marcos Maidana pushes Floyd Mayweather Jr. to the canvas in the first round of their welterweight title fight.  (Al Bello / Getty Images)

Referee Kenny Bayless tells the judges to deduct one point from Marcos Maidana’s score after he tripped Floyd Mayweather Jr. in the 10th round.   (Ethan Miller / Getty Images)

Floyd Mayweather Jr. lands a left hook against Marcos Maidana in their WBC/WBA welterweight title bout in Las Vegas.   (John Locher / Associated Press)