With the jaw-dropping fees in today's transfer market, the ability to sniff out a good bargain can make all the difference to some clubs.
Free transfers are becoming more important than ever and clubs keep a keen eye on when contracts are expiring.
It seems the class of 2018 has some of the finest names in history.
With all these names hitting the market, surely their clubs will be scrambling to tie them down and secure some cash.
Take a look at our XI of players who will be available for nothing in the summer of 2018.
The Spurs backup 'keeper is still only 33-years-old which in goalkeeper years is basically their prime. The Dutchman is a younger alternative to Pepe Reina and excelled during his time with Swansea as the No. 1.
The 32-year-old 22-time Spanish international could be a great option for a number of top sides and he has plenty of European experience. Just behind the Atletico Madrid man is Juventus right-back, Stephen Lichensteiner.
Now this is a rarity. Only 22-years-old, the Uruguyan international is the youngest player on this list and he looks destined to be one of the top centre-backs in the world. Atletico need to tie him down.
Nobody thought Leandro Bonucci would leave Juventus, could Giorgio Chiellini? The Italian legend is now 33 but he is still one of the best in the world.
Another Juventus man, the Ghanian utility man is in his prime at 28-years-old. He can play in centre-midfield, but before Alex Sandro's arrival in Turin he excelled at left-back. Luke Shaw is another exciting option for a lot of Premier League clubs.
The German international is only 23-years-old and Juventus are rumoured to be monitoring his situation closely. His influence has grown at Anfield and the Reds would be gutted to lose him. Across Merseyside, Ross Barkley will also be available.
If the last six months have taught us anything, its that Real Madrid's Isco is one of the best playmakers on the planet. Real may have Marco Asensio on the rise, but they can't let Isco go.
Isco is only 25, but eight years his senior is the finished product. The Barcelona man has won everything possible in the game and even scored the winning goal in the World Cup final. He could still play for anyone, anywhere.
At the top of his game, Mesut Ozil is one of, if not the best playmaker in the world. Arsenal fans won't have agreed with that assessment much last season, but the 28-year-old German is bang in his prime and ready for a big move.
The Chilean superstar scored 30 goals last season and almost single-handed dragged them to compete for a place in the top four. However, missing out on that place will cost Arsenal dear.
When you have the best player in the world and, quite possibly, in the history of the game, it's ridiculous to think that you could that player leave on a free. Most people believe Messi will re-sign, but Barca sure are cutting it fine.
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