ARSENAL have signed Belgium striker Leandro Trossard from Brighton for £21m plus add-ons.
The 28-year-old’s contract runs until 2027 and has the option of being extended by a year.
He has scored seven goals and provided three assists in 16 top-flight games for Brighton this season.
“He knows the league here and I think he can have an immediate impact in the team,” Arsenal manager Mikel Arteta said.
The Gunners say they have submitted the required documents and hope Trossard will be available to face Manchester United at Emirates Stadium on Sunday (16:30 GMT).
“We’re really happy to have him,” said Arteta, who confirmed Trossard had trained with the squad on Friday.
“He’s a player we have followed for a while now and the opportunity came and we have the necessity to have a player in the front line that is versatile enough to to play different positions.”
Trossard, who made three appearances for Belgium at the 2022 World Cup, will wear number 19 for Arsenal.
The Gunners are top of the Premier League and Arteta feels it is “very important” to sign players who can adapt quickly.
