Zlatan Ibrahimovic's FA Cup winner against Blackburn on Sunday was his 24th goal for Manchester United since joining from PSG last summer.
The big Swede arrived with a point to prove, and is proving it perfectly, outshining United's more expensive signings despite not costing a penny in transfer fees.
But where does Zlatan rank in a list of the Premier League's best free transfers? Sportsmail takes a look at the men who arrived for nothing, and left a big mark.
10 Mark Schwarzer (Middlesbrough to Fulham)
Starting our list, its something of an unsung hero in Australian goalkeeper Mark Schwarzer.