Man City and Man United face off this weekend with the pressure on Jose Mourinho to get a result.
Man U have been pretty poor overall this season and despite, Jose Mourinho being a defensive master, United have been terrible at the back and have given David De Gea plenty to do.
In City's case, it seems as though they've picked up from where they left off last year as Pep's men have gone unbeaten while also winning nine of their 11 games, thanks in large part to Sergio Aguero.
David De Gea
Signed for £18.9 million, seven years ago, David De Gea didn't make the best of starts to his career in Manchester. The Spanish goalkeeper was constantly criticised for his lack of decisiveness and strength when dealing with crosses but since that rocky patch at the beginning of his career, the former Atletico Madrid goalie has gone on to become one of the best in the world.
Over the last few years, De Gea has been an ever-present in the Manchester United side and has made the £18.9 million look very cheap.
From day one, his distribution has been superb and but it's his ability to pull off outrageous saves that has developed massively as seen by his 'Man of the Match' performance against Arsenal last season.
Mourinho admitted that he's not confident that De Gea will stay beyond this season and if he does go, there's no doubt that he will go down as one of the best goalkeepers in the world.
TT Grade: A+
Sergio Aguero will forever be remembered for his title-winning goal which handed City their first Premier League trophy and also their first top division title in 44 years as they beat arch-rivals Manchester United on goal difference.
Signed for £35 million in 2011, Aguero has represented a new era at the club as the Argentinian has helped take the club to new heights and won three titles during his time in Manchester.
A world-class striker, Aguero has been a constant goalscorer over the last few years at the club and impressively, even with the arrival of Gabriel Jesus, he seems to have taken his game up another level and is now firmly entrenched as Pep's first-choice striker.
This year he scored his 150th Premier League goal and became only the ninth player to do so. Whenever Aguero leaves the club he will surely go down as one of the best to ever player for City and as it stands, £35 million seems like absolutely nothing for someone of his quality.
TT Grade: A+
The Verdict
A battle between two players that will go down in Premier League history as two of the best, when they leave their respective clubs, it's going to be incredibly hard to replace them.
De Gea has constantly saved Man United and during their current poor patch post-Ferguson, he's been the one shining light.
While De Gea has had to play in a side that has been going downhill, Aguero has been part of a side that has risen to the top incredibly quickly. For his incredible record, Aguero wins this one - but only just.