Stoke City have shocked Tottenham Hotspur with their first league win at White Hart Lane in 35 years.
Peter Crouch and Aaron Lennon both had shots on goal but Glenn Whelan secured the 1-0 win with a goal just four minutes from time.
The result means Spurs stay third in the table, with Stoke ninth.
Elsewhere, Burnley lost for the first time at home in the league this season, going down 3-1 against Wigan, while Birmingham beat Sunderland 2-1.
Saturday's Premier League games
Birmingham 2-1 Sunderland
Burnley 1-3 Wigan
Hull 0-0 Portsmouth
Tottenham 0-1 Stoke
Wolverhampton 1-1 Aston Villa
Hull and Portsmouth managed a 0-0 draw at the KC Stadium. The result means both clubs stay in the in the bottom three.
In Saturday's early kick-off, Wolverhampton and Aston Villa drew 1-1 at Molineux.
Sylvan Ebanks-Blake scored from the spot to cancel out Gabriel Agbonlahor's opener and earn Wolves a point against visitors Villa.