Sir Alex Ferguson described Manchester United's 6-1 thrashing 痛擊 by rivals Manchester City as his "worst ever day" at the club and vowed 發誓: "There will be a response."

Mario Balotelli and Edin Dzeko each scored a brace 兩個球 as City tore apart 撕裂，擊潰 United, who had Jonny Evans sent off 被罰下場。

Sergio Aguero and David Silva also scored for City in United's biggest Old Trafford defeat since 1955.

Ferguson said: "It's the worst result in my history. The impact will come from the embarrassment of the defeat."

He means that the shame the players feel because of the size of the defeat, especially in a derby match 德比，同城兩隊之間的比賽，will inspire them to improve their performances for the rest of the season.

Ferguson believes the loss was self-inflicted 自找的，and criticised his team's gung-ho approach 狂熱亢奮的態度。The result ended their run 連續性記錄 of 19 consecutive home wins 主場取勝 in the Premier League.

The United boss said the way his team played was suicidal 自殺性的。

"Jonny Evans's sending off was a killer for us. With 10 men we kept attacking - it was crazy football and ended up being an embarrassment. We should have just said: 'We've had our day'."

He means that his team shouldn't have continued to attack in the hope of victory, but played in a more defensive way to limit the size of the loss.

Despite the manner of the defeat, Ferguson insisted that United will recover and close the five-point gap 彌補五分的差距 that now separates them and City.