Chelsea wrapped up a sensational fifth successive Women's Super League title by thrashing Manchester United at Old Trafford in Emma Hayes' final game in charge.

The Blues, who led rivals Manchester City by goal difference at the top of the table heading into the final day, knew a big scoreline was potentially needed to win the title.

And with so much at stake Chelsea's players delivered with a ruthlessness that United could never match at Old Trafford.

British record signing Mayra Ramirez produced an outstanding individual display, scoring twice and assisting the other two as Hayes' side went in at the break with a 4-0 lead.

Johanna Rytting Kaneryd, Sjoeke Nusken, Melanie Leupolz and Fran Kirby added to Ramirez's dazzling double as Chelsea romped to victory.

It was the perfect farewell for Hayes, who was full of emotion on a remarkable afternoon in Manchester, capping off a 12-year career at the Blues in style.

United legend Sir Alex Ferguson and Sir Dave Brailsford, the representative of new minority owners Ineos, were in the director's box watching on as United barely laid a glove on the champions.

Aside from Maya Le Tissier's header which bounced off the crossbar with United already trailing 2-0, and a terrible miss from close range by Lucia Garcia late on, Marc Skinner's side failed to create much to trouble Chelsea.

Hayes, who leaves to manage the United States women's national team, bowed out to the familiar sound of 3,000 travelling fans chanting "Chelsea, champions" and with a 14th major trophy at the club.