Viktor Gyokeres says he decided to sign for Arsenal after being impressed by their style of football when he faced them in the Champions League last season.
The Sweden striker has joined the Gunners from Sporting for 73m euros (£63m) deal on a five-year contract.
The move was held up because of negotiations between the clubs over add-on payments, with the final sum made up of a 63m euro transfer fee plus 10m euros in add-ons.
Gyokeres was in the Sporting side thrashed 5-1 by Arsenal in the group stage of Europe’s top competition in November.
“I just felt it was the right club for me,” said Gyokeres. “What I heard from Mikel Arteta and [sporting director] Andrea Berta and just what I’ve seen in the past years, how they’ve been playing football.
“When I played against Arsenal last season, I could really feel it was a very strong team and very difficult to play against.
“That made me choose Arsenal, and of course all the history the club has and the massive fanbase.”
The move takes Arsenal’s summer spending up to about £204m, following the arrivals of Martin Zubimendi, Kepa Arrizabalaga, Christian Norgaard, Noni Madueke and Cristhian Mosquera.