Highly-rated winger Martin Samuelsen has signed a new contract with West Ham.
The 19-year-old, who impressed during a 20-game loan spell at Peterborough last season, has penned a new four-year deal at the Olympic Stadium.
He told the club's official website: “I’ve been here for a year now, and nothing makes me happier than signing a new contract at the Club to stay even longer.
“I’ve really enjoyed the year I’ve had at the Club so far and I want to build on that. It’s just been one upward journey so far, and I’m really happy to sign a new deal and hopefully I can push on and do even better.