Liverpool have completed the £11.75m signing of Olympiacos defender Kostas Tsimikas on a five-year contract.
The left-back, who featured against Wolves in the Europa League last week, has been brought in as much-needed cover for Andy Robertson.
Liverpool moved for the Greece international having walked away from their pursuit of Norwich's Jamal Lewis after the Canaries set their asking price at double the initial £10m offer the Reds made to the relegated Premier League club.
It is understood Liverpool's sporting director Michael Edwards met with Olympiacos general director Lina Souloukou at Molineux on Thursday to finalise a deal for the 24-year-old.
"I'm very happy, I'm very proud to be here. For me, (it is) the biggest club in the world," he told the club's website.
"The league here, I like a lot. I watch it on the TV and it was always one dream I had from when I was a kid to come to play in this league.
"[I want] to achieve [our] goals. To win the league again and also to win the Champions League."
Tsimikas is the Reds' first signing of the summer, having seen centre-back Dejan Lovren leave in a £10.9m deal to Zenit St Petersburg and midfielder Adam Lallana join Brighton following the expiration of his contract.
Manager Jurgen Klopp does not anticipate having a busy or big-spending transfer window but is looking to strengthen central defensive options and potentially his forward line.
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