PES 2019 may not have every official license in the world, but it does have permission to use real players and their likenesses, thanks to separately-owned rights and lots of other legal mumbo jumbo.
A PES 2019 option file - or PES 2019 patch - is for some the thing that helps them fully Pro Evolution Soccer by ushering official licences, even if all of the best players in PES 2019 are officially included.
Whilst playing as Man Red instead of Manchester United or MD White instead of Real Madrid doesn't literally impact the action itself, there is an argument to made that the lack of real names inhibits the overall spectacle.
Fortunately - for PlayStation 4 and PC players, at least - there's a remarkably easy way of switching those default names to the real one.
PES 2018 real team names are useful if you're not onboard with the idea of downloading yourself a pre-built option patch - or worse, the option doesn't exist because you're playing on Xbox One.
Nothing in PES gives you that feeling of supreme satisfaction more than assembling a team of potential wonderkids and best young players, training them to their full potential and delivering glory to your club season upon season thereafter.