MANCHESTER City manager Pep Guardiola has said sorry after ugly scenes at the end of his team's 3-1 home English Premier League defeat to Chelsea.
A number of players from both teams were involved in a melee in stoppage time following Sergio Aguero's waist-high lunge on David Luis which earned him a red card with teammate Fernandinho also sent off for pushing Cesc Fabregas over advertising hoardings.
The dismissals rounded off a dismal day for Guardiola, who watched on as his team squandered numerous chances when leading 1-0 before Diego Costa, Willian and Eden Hazard scored goals on the break to take Chelsea four points clear at the top.
"It is a pity the game finished like this,” Guardiola said.
"I don't like that and I apologise for what happened.
"I don't think Aguero's challenge is intentional. Both players were strong, that is all.
"Then Fernandinho went over to defend his team-mate because of what the opponent did to Aguero.”
City dropped to fourth following the defeat and Arsenal's 5-1 away win over West Ham.
The Gunners eased home and moved up to second thanks to a hat-trick from Alexis Sanchez and goals from Mezut Ozil and Alex Oxlade-Chamberlain.
Spurs closed to within three points of City in fifth after an emphatic 5-0 win over Swansea City at White Hart Lane.
Harry Kane's double helped Tottenham to an easy success to leave the Swans rooted to the bottom of the ladder.
Kane put the home team in front following a dubious penalty award but after that it was one-way traffic, with further goals from Son Heung-min and Christian Eriksen, who also notched two adding to Kane's second.
They dropped below Sunderland, which had a 2-1 home victory over champion Leicester City.
Crystal Palace ended a six-game losing streak with a 3-0 win over Southampton at Selhurst Park, while Stoke defeated Burnley 2-0 and West Brom had a 3-1 victory over Watford.
Liverpool had the chance to move back into second overnight with a win at Bournemouth.
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