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The moment Ken Sema scored the goal that put him on the football map last season he knew he would be heading for the Premier League.

Sema's £2m arrival at Watford may have gone under the radar in another summer of huge top-flight spending.

But his name should have rung bells at Arsenal and, if he achieves his dream of "greatness," will become a household one at Watford too.

Sema, 24, announced himself with a brilliant individual goal that earned Swedish minnows Ostersund a shock Europa League win at the Emirates in February.

(Image: Phil Harris)

With one of his favourite tricks the winger bamboozled Calum Chambers before blasting the ball past David Ospina to send shockwaves around Europe.

Sema said: “When I scored I felt 'wow, this is an amazing goal.' Now I'm here in England, I will sign for a club in the Premier League because teams are seeing this game.

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“My friends and family were in the stands, so happy for me. It was like a dream.

“Here I was no-one, then after the goal it was 'Sema, some player in Sweden, he is good you know.'

“Hopefully I'll do more [like that] and that is the beginning.”

(Image: Phil Harris)

(Image: Phil Harris)

Sema called his journey to the Premier League a “fairytale” given he was playing in Sweden's second division just three years ago.

He was born in Sweden where his Congolese parents settled after living in France and then Belgium.

Norrkoping - two hours from Stockholm and a city with a large Congolese community - became Sema's home and the city's club was his first.

Sema reached the first team by 18 but had to battle to prove himself, firstly out on loan at third tier IF Sylvia and then when he left Norrkoping to join second tier Ljungskile.

(Image: Getty Images Europe)

There Sema was told he needed to become bigger, faster and stronger to eventually cope with the physical demands of Sweden's top division which he likened to England's League Two.

So he transformed himself in the gym from a skillful but self-described “skinny as f***” winger into one capable of handling the rough stuff.

His displays during two impressive seasons at Ljungskile alerted Ostersund's English boss Graham Potter who was building a team of young, hungry players from around Sweden with a point to prove.

“They could have had struggles at their old team or not played because they don't fit in the system like Swedish, Swedish people,” Sema said. “With me, because I'm black I'm not typical Swedish.”

Ostersund and Potter proved the perfect fit for Sema who said the now Swansea boss played “a huge role” in his development and extracted “everything I had.”

(Image: REX/Shutterstock)

Potter encouraged him to express himself and play like he was with friends in the playground, Sema flourished and his rise has almost mirrored Ostersund's from Sweden's fourth tier in 2010, culminating in a Europa League last-32 spot for the club and his goal at Arsenal.

Sema's Watford debut against Brighton last week was a brief cameo but captain Troy Deeney has seen enough to single out Sema as the one-to-watch among their summer signings.

Sweden international Sema said: “My family say 'now you're in the Premier League' but I want more.

“I don't just want to be here, in the squad and say 'I'm ok.' I want to play games, be in the starting XI, score goals and become even better. I am striving for greatness.”