Liverpool have completed the signing of Olympiakos left-back Kostas Tsimikas for an £11.75m fee.
The 24-year-old has signed a five-year contract with the Premier League champions and will provide cover for first-choice Andy Robertson.
The Reds completed the deal for Tsimikas after seeing a £10m bid for Norwich's Jamal Lewis rejected - an offer the Canaries considered derisory.
The Greece international was one of Olympiakos' star performers last season as they clinched a 45th Super League title.
And he told Liverpool's website: "I'm very happy, I'm very proud to be here. For me, [it's] the biggest club in the world. It's an honour to be here and I will give my best.
"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 and to come through.
"With a lot of work and focus on what I do and what the coach wants, and every day working hard in training, I can be on the highest level.
"[I want] to achieve [our] goals. To win the league again and also to win the Champions League."
Analysis: Why Liverpool went for Tsimikas
Sky Sports News' Kaveh Solhekol from The Insider column...
Pedro Chirivella played only six times for Liverpool before his contract ran out in June. He may not have established himself at Anfield but he did play a part in the deal.
Liverpool first came across Tsimikas in 2017/18 when he was on loan at Dutch club Willem II at the same time as Chirivella.
They have been watching Tsimikas closely ever since and scouting reports and data suggest he has what it takes to be more than just a back up for first-choice left-back Andy Robertson.
Tsimikas and Chirivella spent a season playing together at Willem II. Next season Tsimikas will be playing for Liverpool while Chirivella has signed for Nantes.
Summer transfer window - key dates and times
The summer transfer window will run for 10 weeks from July 27 and close at 11pm on October 5.
A domestic-only window for trades between the Premier League and EFL then runs from October 5 and closes on Friday October 16 at 5pm. Follow all the news and analysis on Sky Sports News and across Sky Sports' digital platforms, including with our dedicated Transfer Centre blog.
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The summer transfer window will run for 10 weeks from July 27 and close at 11pm on October 5.
A domestic-only window for trades between the Premier League and EFL then runs from October 5 and closes on Friday, October 16 at 5pm. Follow all the news and analysis on Sky Sports News and across Sky Sports' digital platforms, including with our dedicated Transfer Centre blog.