Tottenham ended Pep Guardiola's perfect Premier League start with Manchester City with an impressive 2-0 victory on Sunday that left the London club as the only unbeaten side.

Far from suffering a hangover after last season's title-challenge collapse, Spurs are enjoying their best-ever start to a top-flight campaign.

City trailed for the first time in the league this season in calamitous circumstances when Aleksandar Kolarov diverted the ball into his own goal in the ninth minute.

Tottenham extended its lead as its energetic, pressing game proved too slick to handle for City. Dele Alli combined with Heung-Min Son before sweeping a shot past Claudio Bravo in the 37th minute.

Bravo did save Erik Lamela's second-half penalty but City could not avoid slumping to its first loss under Guardiola and its second setback of the week after being held by Celtic in the Champions League.

Leicester failed to reproduce its Champions League form in drawing 0-0 at home to Southampton in another disappointing result in its title defense Sunday.

The champions have won just two of their opening seven league games, having won both of their matches so far in the club's first-ever Champions League campaign - the latest coming against Porto on Tuesday.

Southampton created the better chances at King Power stadium, with in-form striker Charlie Austin hitting the post early on and wasting a one-on-one chance in the second half.

Robert Huth headed against the post in the 75th minute with Leicester's best opportunity.

Manchester United's stumbles in the Premier League continued Sunday with a 1-1 home draw against struggling Stoke, which left Old Trafford without losing for the first time in 36 years.

United, which has won just one of its last four league games, took the lead in the 69th minute through Anthony Martial's curling strike - two minutes after he came on as a substitute.

Joe Allen grabbed an 82nd-minute equalizer for Stoke following a rare mistake by David de Gea, who fumbled a long-range shot to allow Jon Walters to scoop a cross against the bar before Allen smashed home from close range.

United failed to beat an opponent that started the day in last place, still hasn't won in seven games in the league this season, and had lost on its last 13 visits to Old Trafford dating back to 1980.