Manchester United announced last night they had agreed a fee of £24m with Arsenal for the transfer of Robin van Persie.
Should the deal go through, it will make the Dutchman the fifth most expensive player in the Red Devils' history. Some are questioning whether the fee represents value for money, particularly considering the Dutchman is 29-years-old, and he only had a year to run on his contract.
Here, we take a look at United's most expensive signings, and assess whether they were money well spent.
Click here or click 'VIEW GALLERY' to launch our guide.