CHELSEA and Manchester United had to scrap to clinch replays they never wanted as the FA Cup quarter-finals threatened to throw up a major surprise.

The Blues trailed 3-1 to Tottenham at Stamford Bridge after Dimitar Berbatov, Michael Essien's own goal and a Hossam Ghaly strike left the visitors seemingly in control.

However, Frank Lampard, who had earlier cancelled out Berbatov's opener, struck again after the break to set the scene for substitute Salomon Kalou to claim a replay at White Hart Lane next Monday.

Jose Mourinho was again in the spotlight, denying he called referee Mike Riley a "son of a bitch" in Portuguese during an angry exchange.

He said: "We made some defensive mistakes, but the game was magnificent. The spirit was great and I think everybody in the stands enjoyed the game.

"We can be happy because at half-time we were two goals down and out of the competition.

"But in the second half, against a good team, we had enough desire and belief. We survived and I will fight until the last moment to win it."

United also had to come from behind to keep their bid for a second Treble alive.

The Red Devils led through Wayne Rooney's 23rd-minute strike, his first goal in eight games, but were then punished for two defensive lapses in four minutes either side of the break.

First, Lee Cattermole span to smash home a 44th-minute equaliser, before Boro skipper George Boateng made the most of woeful marking to head home Stewart Downing's 47th-minute corner.

However, Cristiano Ronaldo levelled from the penalty spot in the 68th minute after Boateng had handled.

United boss Sir Alex Ferguson said: "The name of the game is to keep winning. That is the best recipe and best energy-enhancer of all time: winning. We can handle that."

Aaron Mokoena opened the scoring for Blackburn before being red-carded for a second booking, but Matt Derbyshire sealed a 2-0 win over Manchester City.

Hameur Bouazza scored the only goal as Watford beat Plymouth 1-0.