Following Wednesday night's Champions League clash between Arsenal and Bayern Munich, some have labelled the Gunners' playmaker Mesut Ozil a big-money flop.
However, the Germany international still has plenty of time to silence his critics. Indeed, a few good performances in a row and the same people who criticise will be hailing him.
But the possibility of him becoming a big-money flop should not be ruled out.
This list features the ten most expensive players of all time - including Ozil - and we've judged whether they were stars or flops.
For those players who have been at their respective clubs for less than a year - i.e: those who moved last summer - we've predicted whether they will become hits or misses.
After reading through the article, don't forget to have your say in the comments' section below.