Two years after leaving Chelsea for Paris Saint-Germain and David Luiz has completed a sensational £32 million return to Stamford Bridge.
In doing so, the Brazilian becomes the first defender to accumulate £100m worth of transfers fees having joined Chelsea for £21m in 2011 and leaving for £50m in 2014.
Doubt surrounds his move to Antonio Conte's side, though.
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The jury is still out over Luiz's quality as a centre-back, with French journalist Julien Laurens recently describing him as a "liability for PSG more than anything else".
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But for Arsenal legend Martin Keown, the 29-year-old is an excellent signing for Chelsea and capable of succeeding John Terry in west London.
And yes, you've read that correctly.
Writing for the Daily Mail, he said: "It looks as though David Luiz has been brought in as the long-term successor to John Terry at Chelsea, and I think it's a very good signing.
"It was quickly forgotten how influential Luiz had been at Chelsea [after he joined PSG]. He was a real leader at the back and you can't overstate the part he played in the 2012 Champions League final victory.
"It'll be fascinating to see how he has developed in the past two years, and I expect him to settle in quickly."
David Luiz, comically referred to as Sideshow Bob, capable of replacing the great John Terry... If you say so, Martin.
Keown did admit (thankfully) that the centre-back has a lot to improve.
"If he is indeed set to replace Terry, his composure at the back must improve," he added. "He can be erratic and impatient, and tries to pinch the ball off the striker's toe too often.
"He was all over the place against Germany [at the 2014 World Cup] without the suspended Thiago Silva by his side, but he is older and, hopefully, wiser now and decision-making usually improves with age.
"Of course, Luiz is very good with the ball at his feet. With title rivals Manchester City having brought in John Stones, who is also excellent in possession, Conte may be looking add similar technical ability to his backline.
"And you can bet the Italian will knock Luiz's defending into shape."
Chelsea fans certainly seem happy about the return of Luiz, but there's a sense that he was a last resort for the Blues.
Indeed, Kalidou Koulibaly (Napoli), Alessio Romagnoli (AC Milan) and Aymen Abdennour (Valencia) had all been linked but subsequently rejected moves to Stamford Bridge, lessening Conte's options in the transfer market.