Dejan Lovren has completed his return to Lyon from Zenit on a deal until June 2025.
The Croatia defender, who was part of the side that finished third at the World Cup, is back at his former club for a second spell, 10 years after leaving the Ligue 1 side for Southampton.
Lovren, who played six of his country's seven matches in Qatar, brings a wealth of experience to Lyon's back line, having also helped the Vatreni reach the World Cup final in Russia in 2018.
The 33-year-old previously made 102 appearances for Les Gones between 2010 and 2013 - winning the Coupe de France in 2012.
He then spent seven years in England at Southampton and Liverpool, where he won the Champions League and Premier League titles, before winning back-to-back domestic crowns with Zenit.
"I am very happy to return to Olympique Lyonnais," he told the official club website. "It was the club that opened the doors of international football to me, I will never forget it.
"I have many memories here, many links too, especially with President Jean Michel Aulas who has always supported me.
"I left Lyon in 2013 with regrets because I felt I had not shown everything. I want to prove to everyone what a player I really am."
Lovren could make his second Lyon debut when they welcome Metz to the Groupama Stadium on January 7.