Neymar's move to PSG last summer smashed all records before it, but what are some of the other biggest transfers to have happened? ESPN FC takes a look at the top 10.
All fees provided by ESPN Stats & Information
1. Neymar - Barcelona to PSG - £198m - 2017
It is barely a believable fee but Neymar more than doubled the world record when he moved to PSG from Barcelona. Easily the world's biggest football transfer of all-time and, when you factor in wages and bonuses, it comes in at around half a billion U.S. dollars.
2. Kylian Mbappe - Monaco to PSG - £160m - 2018
The France teenager burst onto the scene with Monaco and, after one incredible season, PSG agreed a year-long loan deal which became permanent for a fee of €180m on July 1. Still only 19, Mbappe is arguably the world's best player under the age of 21.
3. Philippe Coutinho - Liverpool to Barcelona - £105m - 2018
After starring for Liverpool, Coutinho made it clear that he wanted a move to Camp Nou and eventually got it. The deal could reach as much as £142m with add-ons.
4. Ousmane Dembele - Dortmund to Barcelona - £96.8m - 2017
Dembele's fee has add-ons which could see the fee rise by 40 percent -- taking the deal to a potential €147m. Incredible given the teenager was snapped up for a tiny fee from Rennes only a year earlier.
5. Paul Pogba - Juventus to Manchester United - £89.3m - 2016
Man United paid a new world record to land the France midfielder from Juventus but it didn't last very long as Neymar's deal eclipsed all before it. Not a bad investment given Juve signed him for around £500,000 from United in 2012.
6. Cristiano Ronaldo - Real Madrid to Juventus - £88m - 2018
Only Ronaldo, and possibly Messi if he ever leaves Barcelona, could command a €100m fee with only a few years of his career left. One of the greatest of all time shocked the world when he chose to leave Real Madrid and settle in Turin.
7. Gareth Bale - Tottenham to Real Madrid - £85.3m - 2013
Bale's record lasted all of three years as he was sold from Tottenham to the same club who already held the record.
8. Cristiano Ronaldo - Man United to Real Madrid - £80m - 2009
One of the world's greatest ever players was a massive coup for Real Madrid nine years ago, but his transfer fee seems small by comparison now.
9. Gonzalo Higuain - Napoli to Juventus - £75.3m - 2016
Higuain was linked to a host of top clubs in Europe and eventually signed for the Serie A champions, which annoyed Napoli quite significantly.
10=. Romelu Lukaku - Everton to Manchester United - £75m - 2017
Jose Mourinho sold Lukaku when he was at Chelsea but chose to bring the Everton striker in last summer.
10=. Luis Suarez - Liverpool to Barcelona - £75m - 2014
After a summer where he landed a nine-match ban for biting Giorgio Chiellini at the World Cup, Suarez moved to Spain to join up with Barcelona.
10=. Virgil van Dijk - Southampton to Liverpool - £75m - 2018
The world's most expensive defender figures on this list, with Liverpool splashing some serious cash after the sale of Coutinho.