Substitute Lomana LuaLua scored the game's lone goal to earn Portsmouth a 1-0 road win over Charlton on Saturday and top spot in the Premier League standings.

Manager Harry Redknapp's team, which only just avoided relegation last season, moved ahead of Manchester United after a fourth victory in five games and is the only team yet to concede a goal.

LuaLua had been in the game just 10 minutes at The Valley when he took a pass from Sean Davies in the 74th minute, beat midfielder Matt Holland and blasted a low shot past goalkeeper Scott Carson.

``It's nice to get off to a good start, but it's just a good start,'' Redknapp said. ``We have to take it as it comes.

People must not get carried away.''

Manchester United is in action Sunday when it hosts Arsenal, Also, Defending champion Chelsea takes on Liverpool.

Also on Saturday, third-place Everton was held to a 2-2 tie at home by Wigan, twice taking the lead only to have Austria international Paul Scharner to score each time for the visiting squad.

Portsmouth, which now has a goal difference of 9-0, has 13 points from five games. Manchester United has 12 points from its four games while Everton has 11 points from its five contests.

In other action Saturday, Bolton and Middlesbrough tied 0-0 and, in a meeting of two promoted clubs, Reading won 2-1 at Sheffield United.

Kevin Doyle took a pass from United States midfielder Bobby Convey to put the Royals ahead after only 16 seconds at Bramall Lane and South Korea midfielder Seol Ki-hyeon made it 2-0 in the 25th minute with his first goal for Reading.

Rob Hulse replied for the Blades but Reading held on and, in the top flight for the first time in its 135-year history, has climbed to fifth place.

Watford and Aston Villa battled later Saturday.

In other games Sunday, Blackburn faces Manchester City, Tottenham takes on Fulham and West Ham plays Newcastle.

Cardiff returned to the top of the League Championship with a 4-1 victory over Luton, while Birmingham slipped to second after being held 2-2 by visiting Ipswich.