By Henry Burt Chelsea and Manchester United could not be separated at Stamford Bridge, with Casemiro’s stoppage time header cancelling out Jorginho’s late penalty in an enthralling encounter. Both sides went into this fixture on the back of a positive run of form, with Chelsea looking for a sixth consecutive clean sheet while United were still buzzing from their midweek victory over Spurs. The game had the makings of a crucial battle in the race for the Premier League’s top four, and perhaps this was playing on the minds of both teams as they both opted for a somewhat risk-averse approach. Uni…