Derby County midfielder Jeff Hendrick has signed a new four-year contract with the Championship club.
The Republic of Ireland international, 22, scored five goals in 35 games last term as the Rams lost out to QPR in the play-off final at Wembley.
Hendrick, who had a season remaining on his previous deal, has made 129 senior appearances for the Rams since 2011.
"It is probably one of the best signings we will make this summer," said Derby County boss Steve McClaren.
"He ended last season in very good form and made a real impact on the side, so we'll be looking for exactly the same from him at the start of the new season in August."
Hendrick initially joined Derby as a trainee from St Kevin's Boys in Dublin and signed his first professional contract at the end of the 2009-10 campaign.