Mark Percival has signed a new contract with St Helens
The 22-year-old England centre is a product of Saints’ youth system and has featured 79 times since making his debut against Leeds in 2013.
Percival made his England bow in the 2016 Four Nations and has made three appearances for the national side.
Widely regarded as one of the best young centres in the Super League, Percival said: “I love this club. I have been here since I was 12 years old and I want to help it win more trophies that’s my aim.
Mark Percival has been a first-team regular since making his debut in 2013
“I just want to improve and get better and I’m looking forward to doing that over the next four years.
“It was a dream to play for England but my priority is to do well for this club. If I do that then I give myself the best chance of playing for England again.”
Percival’s new contract followed the news that Wigan stand-off George Williams had also signed a four-year deal until the end of 2021.
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Williams has attracted interest from NRL clubs but he said: “Wigan is in my heart and where I want to be.
“I was close (to leaving) but I kept coming back to this is where I want to be – this is where I want to win trophies.”
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Williams will become Wigan’s second marquee player alongside Sam Tomkins, who rejoined the club two years ago from the NRL.