(CNN) -- Manchester United and Arsenal both claimed easy victories on Wednesday to remain in touch with Chelsea at the top of the English Premier League.
Champions United cruised to a 5-0 home win over Wigan, while Arsenal secured a 4-1 victory at bottom club Portsmouth.
The results mean United have closed to within two points, and Arsenal four points -- but with a game in hand -- on Chelsea after the final league matches of 2009.
United put on a superb display at Old Trafford, with former Wigan winger Antonio Valencia impressive against his former club.
The result was never in any doubt once Wayne Rooney had steered home Rafael Da Silva's cross to score his 15th goal of the season.
Three minutes later, Michael Carrick swept home the second after Valencia had shown enough vision to cut a pass back into his path rather than drill a cross into crowded penalty area.
And Brazilian full-back Rafael added a third after collecting Darren Fletcher's pass before drilling past goalkeeper Chris Kirkland.
Dimitar Berbatov added a fourth after more good work from Valencia, while the Ecuador international capped a fine individual performance when chipping home the fifth goal.
Meanwhile, at Fratton Park, Portsmouth's troubles deepened following a heay defeat at the hands of in-form Arsenal.
The club had earlier issued a statement denying being formally served with a winding up petition by Her Majesty's Revenue and Customs in respect of disputed tax payments -- and their mood was not helped after a thrashing that left them still bottom of the table by four points.
The visitors were always in command after Eduardo's free-kick had deflected in off Younes Kaboul to give them an early lead.
Samir Nasri drilled in a second just before half-time, after a well-worked move, while teenager Aaron Ramsey smashed home a third on 69 minutes after some fine individual skill.
Although Nadir Belhadj pulled a goal back for the home side, midfielder Alex Song nodded in a fourth with 10 minutes left from Nasri's right-wing cross.