Aston Villa have signed goalkeeper Emiliano Martinez from fellow Premier League side Arsenal for £17m.
The 28-year-old Argentine, who made 23 appearances last season and played in the Gunners' FA Cup final win over Chelsea, has signed a four-year deal.
Villa manager Dean Smith said Martinez will be a "key player for our club for the long term".
"It is rare to be able to buy a top-class goalkeeper who hasn't yet reached their peak age," he added.
"We know how highly Arsenal rated him and we watched his outstanding performances last season in a trophy-winning, top side.