Britain's Dalton Smith defended his WBC light-welterweight world title with a split-decision victory over Alberto Puello in a triumphant homecoming in Sheffield.

The 29-year-old extended his unbeaten professional record in a high-class tactical contest at the Utilita Arena, with both fighters displaying sharp counter-punching skills.

The result hung in the balance as the judges' scorecards were read out, with victory for either man, or a draw, seemingly possible.

But Smith edged it, with two judges scoring the contest 115-113 in his favour and the third awarding it 116-112 to Dominican fighter Puello.

It was Smith's first title defence after his stunning fifth-round knockout of Subriel Matias in Brooklyn in January.

"We knew it wasn't going to be a show, he was going to be an awkward opponent, but a champion has to do what he has to do," Smith said post-fight. "These are the best in the world and I'm proving why I'm number one now."

The Sheffield fighter passes another stern test against two-time world champion Puello to extend his record to 20 wins.

With his mandatory challenger out of the way, Smith keeps his dream of headlining Sheffield Wednesday's Hillsborough Stadium alive and will target some of the biggest names in boxing, including unbeaten American Shakur Stevenson.

"I have a lot of respect for Shakur - he's one hell of a fighter," Smith added. "But this takes me back to the Ricky Hatton and Mayweather days. We can build something good."

Promoter Eddie Hearn added: "Dalton Smith is a legacy guy. I know that money plays a big part in boxing, and we want to make sure that this guy lives a wonderful life.

"First and foremost this guy is a real fighter, who wants belts, legacy, and to make his city proud."

Puello (right) loses for the second time in his 27th pro fight

Sheffield has a rich boxing history, having produced world champions including Prince Naseem Hamed, Johnny Nelson and Kell Brook, and those in attendance gave their latest champion a hero's welcome.

Wearing the blue and white of his beloved Sheffield Wednesday, he made his ring walk to AC/DC's Thunderstruck.

The contest began cagily, with neither fighter willing to overcommit as both showed sharp defensive skills.

Smith had beaten the fearsome puncher Matias by standing and trading, but Puello posed a different challenge - a slick southpaw relying on movement and counter-punching.

The champion dictated the pace in the early rounds. He landed a right in the fourth, but Puello, 32, found his range with his left before Smith connected again just before the bell.

Puello - whose only career loss came against Matias last year - came alive in the sixth, landing a series of straight lefts to take the round. The challenger then slipped to the canvas, briefly raising hopes of a knockdown among the home crowd.

The atmosphere resembled a football terrace, with a drummer and trumpeter accompanying fans singing Sheffield Wednesday songs.

A superb double jab and right hook from Smith in the ninth was answered by an uppercut and hook to the body from Puello, showcasing the quality of both fighters.

With the contest - originally scheduled for June before an elbow injury forced Smith to withdraw - finely poised, both men had everything to fight for heading into the championship rounds.

Cut below his right eye, Smith traded blows with Puello, perhaps edging the exchanges through his higher work-rate.

Smith played to the crowd in the final 20 seconds, before leaping into his father's arms at the final bell.

Britain's Smith defends title in absorbing split-decision win v Puello - recap

Smith celebrated his win with his father and trainer, Grant, before posing for photos with fans

Smith's breakthrough year has established him among the leading fighters at light-welterweight. He had already won British, Commonwealth and European honours, and a successful first world-title defence further strengthens his credentials.

"Tonight, for me, Dalton Smith cemented himself as the number one pound-for-pound fighter in Britain," Hearn added.

The biggest challenge could come against Stevenson, the unbeaten WBO world champion and a four-weight world title-holder. The American is widely regarded as one of boxing's most gifted technicians.

Stevenson's recent departure from Zuffa Boxing could open up opportunities for negotiations, while another potential unification opponent is WBA champion Gary Antuanne Russell.

Closer to home, a meeting with unbeaten British rival Adam Azim has been discussed for several years. The pair have exchanged words throughout their rise and Smith has indicated he would welcome the contest at Hillsborough in 2027, although he believes Azim still has work to do before challenging for his world title.

"Number one goal in my life was to become world champion and make history, the second was to sell out Hillsborough stadium," Smith added.

The prospect of Smith defending his title in front of tens of thousands of supporters at the home of his boyhood football club would be another remarkable milestone.

He is not one for trash talk or the theatrics that often help fighters build their profiles, preferring to let his performances do the talking.

But the challenge now is turning world-title success into high-profile fights that could catapult him into the mainstream.