Spain international forward Munir El Haddadi will spend the season with Alaves after again being loaned out by Barcelona.
Munir spent the 2016-17 campaign at Valencia, where he started 22 league games and featured a further 11 times from the bench.
Barcelona were always likely to send the 22-year-old back out for another season of development elsewhere, with Crystal Palace, Deportivo La Coruna, Roma and Alaves all being touted as possible destinations.
Last term's beaten Copa del Rey finalists have won the race for Munir's signature, though, completing the deal with a couple of hours of deadline day to spare.
La Masia graduate Munir netted on his full debut for Barca against Elche in 2014, but he has failed to earn a string of starts at Camp Nou.