As Chelsea welcome Manchester United to Stamford Bridge on Sunday, the Premier League prepares to witness two in-form titans going head to head.
Huge questions have been asked of both sides this season, with each dropping needless points and struggling on occasions when they were simply expected to win.
It is second versus fifth in the Premier League, with both sides desperate to cement a Champions League place and prepare as strongly as possibly for next season - when supporters are hopefully back filling the stadiums.
But when it comes to a combined XI, who makes the cut?