The Londoners are lockedup in an intriguing top four race in the Premier League and this also includes rivals and Sunday's FA Cup foes, Manchester United.
Los Blancos will be bidding to make it a league double over Barcelona this season, having recorded a 2-1 victory when the two teams locked horns for the reverse fixture back in October.
Younes Kaboul (Watford) Seemingly unwanted by Javi Gracia as he's fit but not training with the first-team, the France international could be snapped up by Ligue 1 signed Nantes before the transfer window closes.