Unseen footage from Louis Rees-Zammit's historic contract signing with the Kansas City Chiefs has been revealed.

The Welshman has signed a three-year deal with the double Super Bowl champions and will link up with the likes of superstar quarter-back Patrick Mahomes and Travis Kelce, who is Taylor Swift's partner.

Following a 10-week training camp as part of the International Player Pathway programme, Rees-Zammit took part in a 'Pro Day' where he was put on trial in front of various NFL franchises. Many teams wanted his signature after his efforts, but it's the Chiefs who have him.

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As part of a YouTube docu-series, the IPP programme have documented the journey of their stars. It has culminated in a 10th episode which has detailed the players securing offers from different clubs.

As part of episode 10, the head of the NFL's International Player Pathway programme James Cook explained that following the Pro Day, Rees-Zammit had six team visits in eight days. He visited the Cleveland Browns, New York Jets, Denver Broncos, Kansas City Chiefs and more.

Rees-Zammit's family were out in the States with him during the team visits, and the Welshman explained prior to his Chiefs contract signing: "I can't wait to see what the future holds" - a timely foreshadowing of a sensational story for the former Wales star.

Video revealed the moment that the IPP team found out that Rees-Zammit would be heading out to Kansas to sign his three-year contract, as the team shook hands in light of the good news.

"They're going to send it over in the morning. But they've received an offer and they are happy with it, so they are going to send it over in the morning and he's going to find the time this weekend to fly up to Kansas City and sign in person," James Cook, head of the International Player Pathway said, with fist-pumps and hugs following suit.

There was hugs all round when the news broke

"Since yesterday, I have agreed terms with the Kansas City Chiefs," explained a jubilant Rees-Zammit.

"Fly there tomorrow morning, sign the contract, and then I'm good to go. I go back home, get my visa and then come back on April 15 for training camp. I'm really looking forward to it!"

Having made friends with the other IPP athletes since first getting together for the camp in late January, Rees-Zammit said his farewells to the rest of the boys before leaving. He joked about Manchester United's clash against Chelsea, in which he attended.

Despite the glamour surrounding the move, and the astronomical fame in which the Penarth man has been plunged into, it was revealed by Cook, head of the IPP, that Rees-Zammit had been "relentless" in the process of achieving his goal and always showed a willingness to learn and improve himself.

Footage also showed Rees-Zammit signing his contract, as well as sending out a video message to Kansas City Chiefs fans following the closure of the deal. The Welshman has since been seen on social media linking up with the Chiefs players, and was pictured with quarter-back Mahomes.

You can watch a clip of the video here.