Former England coach Steve McClaren has been named the new manager of Newcastle United, the club has confirmed.
McClaren, who took local rivals Middlesbrough to the 2006 UEFA Cup final, and FC Twente to the Dutch title, has signed for an initial three years, which could rise to eight.
Managing director Lee Charnley said he was "delighted" to have "secured the services of one of the best coaches in English football".
He added: "From my first meeting with Steve I knew he was the perfect fit for Newcastle United.
"He has 20 years' experience, including for the national team and at the highest level of European competition."
Derby have sacked manager Steve McClaren after he failed to guide them into the Premier League at the second time of asking this season.
A club statement confirmed:
Former England manager Steve McClaren has left Dutch club FC Twente following crisis talks over recent poor results.
The former Middlesbrough boss has parted company with the team in fifth place in the Eredivisie.
He led Twente to its first title in 2010 during his first spell in charge of the club, before returning after less successful tenures with German side Vfl Wolfsburg and Nottingham Forest.