And there's plenty of value to be found in the free agent market - with several international stars available to Premier League clubs for nothing.
Scroll down and click through the pages to view the 11 available free agents top-tier clubs could sign.
1. Joseph Mulumbu
The 32-year-old former Celtic man has a wealth of Premier League experience with West Brom.
2. Ignazio Abate
The 33-year-old right back is a free agent having left Italian giants AC Milan.
3. Martin Olsson
The 31-year-old Sweden international left-back turned out for Blackburn, Norwich and Swansea in the Premier League - making him a decent option for clubs short on defenders.
4. Younes Kaboul
Last turned out for Watford in 2018, the experienced centre-back could still do a job in the top tier.
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