It's been a huge summer of spending by European football clubs, with the Premier League alone spending a whopping £1.9 billion on transfer fees. In fact, the Premier League's spending was higher than the combined total outlay of Serie A, La Liga and the Bundesliga.
Chelsea spent more money this window than any other Premier League club in history, while Manchester United also made history by spending more on players this summer than ever before. Even Nottingham Forest got in on the act, as they signed more players in a single window than any other English club has ever done.
It's been a quite the summer for Irish talent as well with plenty of stars moving to pastures new over the past few months. Here, we take a look at the top five biggest transfers of Irish players that took place this summer:
