Yahoo Sports reports: Jaron “Boots” Ennis survived the toughest fight of his professional career before stopping Xander Zayas in the seventh round on Saturday night to unify the WBA and WBO super-welterweight titles at Barclays Center. The previously unbeaten Ennis knocked Zayas down three times and weathered a furious third-round rally before referee halted the bout at 1:49 of the seventh round, giving the Philadelphia native the signature victory that had eluded him despite years of being regarded as one of boxing’s brightest talents. Ennis improved to 36-0 with 32 knockouts, while Zayas suffered the first defeat of his career after entering the fight 23-0.