Premier League champions Manchester United host Arsenal at Old Trafford on Sunday afternoon, in the biggest match of the 2013/14 season so far.
The Gunners have exceeded expectations at the start of this season and currently sit five points clear at the top of the Premier League table, eight points ahead of eighth-placed Manchester United, who are finally beginning to gel under new manager David Moyes.
Both squads are full of talent, but which players would make it into a combined Arsenal and Manchester United line-up?
Goalkeeper: David de Gea | Manchester United
David de Gea has blossomed into one of the finest goalkeepers in Europe over the past 12 months, so gets into this XI ahead of Arsenal's Wojciech Szczęsny, who is a very decent 'keeper in his own right.
Left-back: Patrice Evra | Manchester United
Patrice Evra, at the age of 32, is still one of the best left-backs in the Premier League. Kieran Gibbs and Nacho Monreal have a way to go to reach the Frenchman's level.
Centre-back: Laurent Koscielny | Arsenal
Laurent Koscielny has made his fair share of errors at Arsenal, but he always manages to bounce back and improve. The Frenchman was excellent in the second-half of last season alongside Per Mertesacker.
Centre-back: Nemanja Vidic | Manchester United
Manchester United's talismanic captain, Nemanja Vidic, remains a rock-solid Premier League defender. One of the bravest and most committed footballers in the Premier League.
Right-back: Rafael | Manchester United
Manchester United look more fluid and solid with Brazilian full-back Rafael at right-back. Bacary Sagna is not the player he was a couple of years ago, while Carl Jenkinson is improving, but Rafael is the pick of the bunch.
Central midfield: Jack Wilshere | Arsenal
Jack Wilshere, the future captain of Arsenal, is an excellent central midfielder. The 21-year-old is intelligent, technically gifted and will be a key player for club and country for many years to come.
Central midfield: Aaron Ramsey | Arsenal
Manchester United midfielder Michael Carrick would have occupied the other central midfielder role had Aaron Ramsey not burst into life this season. The Wales international has arguably been the Premier League's best player so far this term.
Left-wing: Santi Cazorla | Arsenal
In terms of technical ability, the ambidextrous Santi Cazorla sits at the very top of the Premier League tree. What the Spaniard can't do with a football isn't worth knowing about. A genius.
Attacking-midfield: Wayne Rooney | Manchester United
Wayne Rooney, the heartbeat of Manchester United, is the best English player of his generation - and one of the greatest players in world football. Look up 'complete footballer' in the dictionary and chances are you'll see a photo of the Red Devils' star.
Right-wing: Mesut Ozil | Arsenal
Mesut Ozil has only been in the Premier League five minutes, but the whole world knows exactly how much quality he possesses. The Germany international is one of the best playmakers in the world and walks into this combined XI with his eyes shut.
Striker: Robin van Persie | Manchester United
Once adored by the Arsenal faithful, now adored by Manchester United supporters, Robin van Persie narrowly gets into this side ahead of the on-song Olivier Giroud.
Will Van Persie again prove the difference this weekend?