Liverpool have officially confirmed that Ragnar Klavan has joined the club after sealing a £4.2 million move from FC Augsburg.
The left-footed centre-back, also capable of playing as a left-back, completed a medical and agreed personal terms on Tuesday and puts pen-to-paper on a three-year contract to move to Merseyside.
The Estonian international arrives with a wealth of experience and has earned over 100 caps for his country, whom he captains, and will take the No.17 shirt at Anfield, after Mamadou Sakho swapped that for No.3 earlier this week.
He spent the last four years at Augsburg and played every minute of their record-breaking campaign in 2014-15, helping them to a fifth-placed finish and Europa League qualification.
30-year-old Klavan played the full 180 minutes across the two legs between Liverpool and Augsburg in the Europa League round of 32 last season, James Milner's second-leg penalty giving the Reds a 1-0 victory on aggregate.
Klavan has been signed as dependable cover with Joe Gomez and Sakho both out injured with Achilles problems and Martin Skrtel and Kolo Toure both having left the club.
In addition, potential back-up option Tiago Ilori will take part in the Olympic Games for Portugal Under-23s.
Estonian signed to add much-needed strength in depth in defence
That left Klopp with just Dejan Lovren and Joel Matip as only his fit senior centre-backs, with the latter sustaining bruising to his ankle that forced him off in the 89th minute of their 2-0 pre-season friendly win over Wigan Athletic on Sunday.
Though that knock has been revealed to be nothing serious, after scan results earlier this week, the signing of Klavan ensures Klopp will have ample options come the start of the campaign.
The defender becomes the fifth new arrival on Merseyside this summer, following Sadio Mane, Loris Karius, Marko Grujic and Matip - the latter two having agreed moves back in January.
Though the deal has been completed prior to the Reds' friendly at Huddersfield Town on Wednesday evening, Klavan isn't expected to take part.
The club's supporters will get their first viewing of the defender on their tour of the United States, with the squad flying out to California in the early hours of Thursday.
The Reds' Stateside schedule sees them face Chelsea in Pasadena, before clashes with AC Milan in Santa Clara and AS Roma in St Louis - all within six days - before returning to the UK.
Klopp is now expected to focus on trying to sign Georginio Wijnaldum of Newcastle United, with Liverpool keen to strike a deal for the midfielder although the two clubs are yet to agree on a fee.
Newcastle, who are under no obligation to sell the Dutchman although he wants a return to the top-flight, are believed to want as much as £27 million for the 25-year-old.