"It was just like last week. We suffered a late goal," Jesus said. "The players felt they didn't deserve to lose, they felt like they were (knocked) down after the game."
The Portuguese team overpowered Chelsea early on, but could not convert its domination into goals. Cardozo and Eduardo Salvio both had shots blocked in the penalty area in an 11th-minute scramble, and Nicolas Gaitan fired over the bar a minute later.
Rodrigo was the next to come close for Benfica, but he slipped as he looked set to open the scoring in the 15th minute and scuffed his shot.
Artur then pulled off a spectacular save on Chelsea's newly minted all-time top scorer Frank Lampard in the 38th minute.
Lampard unleashed a powerful right-footed drive from outside the area and the swerving ball wrong-footed the goalkeeper. But he managed to stick out his left hand and deflect the ball over the bar.
Chelsea hung on again after the break as Benfica poured forward. And Torres, who has struggled to find the net consistently for Chelsea since his 2011 transfer from Liverpool, finally broke the deadlock in the 60th minute.
The Spaniard collected the ball just inside Benfica's half, used his strength to turn and wrestle past Ezequiel Garay and then beat captain Luisao before rounding Artur and calmly slotting in from a tight angle.
He sprinted to the corner and struck a Usain Bolt-style pose in front of the Chelsea fans.
Chelsea's lead lasted about eight minutes before Cesar Azpilicueta handled the ball just inside the area. Cardozo smashed in the penalty to bring Benfica level.
Both sides had chances in the closing stages, with Petr Cech tipping over the net a dipping left-footed volley from Cardozo. Lampard fired a long-range shot onto the crossbar in the 88th minute.
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