premise: Manchester United moved atop of the English Premiership with three points clear on Saturday after they beat Portsmouth 3-0 at the Old Trafford.
  Chelsea, however, can pull level on points with them at the top of the table provided that they beat Tottenham at White Hart Lane on Sunday.
  Thanks to a brace from inspired Dirk Kuyt, the resurgent Liverpool chalked up their fourth successive win after comfortably overcoming Reading 2-0 at Anfield, while Darren Bent scored his seventh goal of the season to give Charlton a 1-0 home win over Manchester City.
  Watford secured their first win of the season as they capitalised on some woeful defensive lapse from Middlesbrough to score a 2-0 home win.
  Louis Saha opened the scoring from the penalty spot after only three minutes to set the tone of the thrashing which celebrated Sir Alex Ferguson's 20 years as manager in style.
   How did Liverpool get their fourth successive win?
hypothesis: pull level on points with them at the top of the table