Arsenal signed Swedish striker Viktor Gyokeres from Sporting on a five-year deal valued at £55 million. Gyokeres, an essential addition for Arsenal's bid to strengthen their squad, joins after successful seasons in Portugal,

Financial details on the transfer were not disclosed but British media reported Arsenal agreed to pay 55 million pounds fixed upfront fee plus around 8 million pounds in add-ons for the 27-year-old.

Gyokeres’ arrival also marks the end of a hard period of negotiations with Sporting, who were insistent on more achievable add-ons. At one point, the deal dragged on and stalled over a potential add-on of €5m.