Liverpool stitched up Man Utd and Arsenal with contract clause after transfer bid made
![Liverpool stitched up Man Utd and Arsenal with contract clause after transfer bid made](https://i2-prod.mirror.co.uk/incoming/article31583770.ece/ALTERNATES/s615/21_john-w-henry-GettyImages-1167053126jpeg.jpg)
Contract clauses are increasingly common in the world of modern football, and Liverpool developed a reputation for outfoxing their Premier League rivals while doing deals