PSR transfers explained: Why Premier League clubs have rushed to get deals done
![PSR transfers explained: Why Premier League clubs have rushed to get deals done](https://i2-prod.mirror.co.uk/incoming/article33143139.ece/ALTERNATES/s615/0_Untitled-1.jpg)
Aston Villa's Douglas Luiz is the latest name on the list of players who have already swapped strips this summer window as clubs have set out to get business over the line in double time