Liverpool have completed the signing of Kostas Tsimikas from Olympiacos on a five-year contract.
The left-back flew into the UK on Sunday and completed his medical with the Reds on Monday at a private hospital before he was officially unveiled as the club's first signing of the summer.
The Reds will pay Olympiacos an initial fee of around £11.75m and the Greece international will provide competition for Andy Robertson on the left side of the Liverpool defence next term.
Tsimikas was one of four left-backs identified by the club alongside Norwich City's Jamal Lewis, Real Madrid defender Sergio Reguilon and Bournemouth's Lloyd Kelly.
However, after having two bids rejected for Lewis last Thursday, sporting director Michael Edwards quickly turned his attention to Tsimikas as he met with Olympiacos officials in Wolverhampton ahead of their Europa League game at Wolves later that day.
Tsimikas will wear the No.21 shirt at Anfield next term and becomes the first signing of what is expected to be a subdued summer on the spending front.
Speaking to Liverpoolfc.com, Tsimikas credited his brother as the driving force behind the move - because of his love of the Premier League champions.
"My brother is a Liverpool fan and he pushed me to come here and sign," he said.
"[As] a kid, I supported Liverpool. For all my family and for my brother, we are very happy for this.
"I think until now he [his brother] doesn't believe I'm here. Now when he sees the pictures he will understand I've signed here and will be very happy."
Tsimikas has been on Liverpool's radar for the best part of three years with scouts first alerting club staff to his potential as they checked on Pedro Chirivella during his loan spell in the 2017/18 season with Willem II.
Tsimikas was a regular in Olympiacos' Europa League campaign this term, featuring against both Arsenal and Wolves as well as Tottenham in the group stages of the Champions League.
In total he made 86 appearances for the Greek side and moves to Merseyside with three international caps to his name.