Kell Brook proved his world title credentials with a classy, high-profile win against British welterweight rival Matthew Hatton in Sheffield.
Brook, 25, was under pressure to impress as he topped the bill in front of 10,000 fans at the Motorpoint Arena in his home city.
He managed to do that against Hatton, boxing smartly in a scrappy encounter, to win a unanimous decision with scores of 118-109, 119-108 and 119-107 as he moved himself even closer to an inevitable world title shot later this year.
Amid a raucous and sometimes violent atmosphere, the two sized each other up for the opening minute before Brook established himself with the cleaner shots, bloodying Hatton's nose late in the opening round.
A left hook counter by Brook early in the third seemed to hurt Hatton for the first time. Hatton did land a solid reaching right before the bell but it was a rare moment of success. Brook's hard jab worked away at Hatton's damaged nose, undoubtedly hampering the older man's breathing.
Hatton started the fifth well but Brook quickly turned it around, rocking the Mancunian with a left hook and follow-up right. Hatton was in survival mode, managing to escape the corner and survive the round.
A straightforward left-right seemed to hurt Hatton in the sixth but the experienced 'away' fighter recovered well. Another right had him in trouble again soon after and Brook smelled blood. Again, Hatton held on and briefly fired shots back, including a quick right followed by the jab.
A winging right by Hatton in the seventh was perhaps his best punch of the night but Brook shook it off and resumed control quickly.
Hatton was down in the ninth and though referee Marcus McDonnell scored a knockdown, it seemed the Mancunian had slipped as Brook threw a left hook. Hatton landed a beautiful left hook early in the 10th, jumping into it and hammering home to Brook's jaw. The Yorkshireman overcame it with surprising ease, however.
Hatton was reeling for a moment in the 11th round as the onslaught continued but he got himself together to see out a scrappy session. Brook, who was marked up around the right eye heading into the final round, was still measured rather than gung-ho in his shot selection.