Joe Willock has joined Newcastle on loan from Arsenal until the end of the season.
The Gunners midfielder has started just twice in the Premier League this term.
Willock said: “I’d like to thank all the supporters for their warm welcome and messages so far.
“This is a club with a massive history that I’ve grown up watching and I’ll work my socks off for the team. I can’t wait to see everyone and be part of the Newcastle family.”
Willock is behind Granit Xhaka, Thomas Partey and Dani Ceballos in the pecking order at the Emirates.
The 21-year-old, who signed a new long-term contract with Arsenal in September 2019, will be looking to get more playing time under his belt at Newcastle.
The Magpies secured a first win in 10 Premier League matches with a 2-0 victory over Everton on Saturday.
Newcastle boss Steve Bruce added: “I’m delighted to bring Joe to Newcastle until the end of the season.
“He is a very exciting and talented young player who can get up and down the pitch and can score a goal from midfield.
“He has made a very decent impact at Arsenal after coming through the ranks and to make nearly 80 appearances for the club by the age of 21 says much about his development, ability and character.
“He is very keen to come here and test himself and he’ll be a great addition to the squad.”
Willock has made 78 appearances since breaking into the Arsenal first-team.
Arsenal winger Reiss Nelson has wished his teammate good luck on social media.
He wrote: “God bless you my brother! I will miss you 100x but it’s your turn to go show the world! I’m behind you my brother.”
Meanwhile, Newcastle failed in their pursuit of Leicester midfielder Hamza Choudhury.
The 23-year-old has started just one Premier League match for the Foxes this term, but looks set to remain at the King Power Stadium.