Rosenior warns Chelsea need swift progress as deadline nears for Champions League qualification
Roseniors team sitting in sixth place have endured a poor streak with only one victory in their previous seven Premier League matches putting their chances of entering Europes top club tournament at serious risk.
United in third position will visit Stamford Bridge with Chelsea trailing them by seven points and Liverpool in fifth just four points ahead of the Blues.
Chelsea have not netted a goal in the league for over six weeks now.
Roseniors squad has only six fixtures remaining to push into the top five and he understands they cannot afford self pity following their recent 3-0 loss at home to Manchester City.
As the campaign progresses the fewer matches remain the greater their significance becomes Rosenior explained to journalists on Thursday.
We must seize this opportunity. Time is slipping away quickly.
We should display that drive on Saturday play aggressively and close the gap in points which remains entirely achievable.
Looking at each match I believe it boils down to a brief lapse in attention or focus that then spirals affecting the entire showing.
We must control the fine details of the match more effectively.
Chelsea fans plan a demonstration before the clash with United highlighting the mounting frustration since BlueCo assumed control from Roman Abramovich nearly four years back.
Without a sharp upturn in form over the coming weeks this would mark the first season under the American ownership where the clubs league standing has declined.
Roseniors role may face increased examination after a shaky beginning to his tenure which commenced in January upon his move from Strasbourg taking over from Enzo Maresca.
Maresca left by mutual agreement after suggesting he lacked adequate backing from the owners.
With Strasbourg under BlueCo ownership some supporters have questioned Roseniors hiring alleging he might serve as a board figurehead unlike the fiery Maresca.
All fans hold their own opinions Rosenior stated. Everyone desires success and victories for their team. It falls to us to deliver those outcomes over the longer haul.