Arsenal have agreed a deal for Porto midfielder Fabio Vieira.
GOAL can confirm that the 22-year-old has now arrived in London to undergo a medical and complete his shock £30 million (€35m) switch to north London. He will sign a five year contract.
The Gunners hope to confirm the signing quickly, either over the weekend or early next week.
Arsenal's under-the-radar transfer
By Charles Watts, GOAL Arsenal correspondent
A bolt from the blue!
It’s not often that a transfer comes out of nowhere and takes almost everyone by surprise, but Arsenal’s move for Fabio Vieira has done exactly that.
The Porto midfielder has not been one of the names linked to Arsenal this summer, with the Gunners known to be targeting Leicester City’s Youri Tielemans.
However Vieira will now be the first significant arrival of the transfer window at Emirates Stadium, with the Gunners confident of wrapping up the £30m deal in the next few days.
Vieira is hardly a household name, but his numbers with Porto last season show he will add talent and creativity to the Arsenal midfield, should the deal go through.
Mikel Arteta is desperate to strengthen his squad this summer and while Vieira may not be the name everyone was expecting to see arrive, his potential arrival looks set to be the catalyst for a busy couple of months in north London.
Who is Arsenal target Fabio Vieira?
One of the most promising young talents to come out of Portugal's well-respected youth scene in the past few years, Vieira is a midfielder preparing to burst out onto the biggest scenes after superb domestic form.
A product of Porto's academy, he made the leap up to the senior side in 2019-20 before cementing his place over the following two years as a key performer for the club in their pursuit of domestic success.
A move to a bigger league among the European heavyweights is a natural progression - but with six goals in 27 top-flight games last term, it will be curious to see if he is able to bridge the gap successfully and deliver for the Gunners, as Arteta looks to bolster his team around the middle of the park.