PETR CECH: With heir apparent Thibaut Courtois in the opposing net, the Czech needed a strong performance but lasted just 20 minutes before departing injured. 6/10.
CESAR AZPILICUETA: Switched to the right as a result of Branislav Ivanovic's suspension. Blocked well from Diego Costa in the first half. 7.
ASHLEY COLE: Making his first Blues start and only second appearance since January, the left-back slotted in seamlessly to show his value to the club. 8.
GARY CAHILL: Dealt brilliantly with the considerable threat of Diego Costa in a resolute display. 9.
JOHN TERRY: The captain threw himself at every aerial duel and invariably won the ball but suffered an injury which could prove costly. 7.
DAVID LUIZ: An immovable force in Chelsea's midfield and in defence after Terry's injury. A nuisance, too. 7.
JOHN OBI MIKEL: Operated as an auxiliary centre half for much of the match. Booked and suspended for second leg. 6.
FRANK LAMPARD: His experience counted on a challenging evening. A booking rules him out of the second leg and he was perhaps fortunate to avoid a second yellow for handball. 6.
RAMIRES: Operated wide right and often as a right wing-back. Had few opportunities to lead breaks forward. 6.
WILLIAN: Like Ramires, the Brazil playmaker had to perform defensive duties on a night when possession was scarce. 6.
FERNANDO TORRES: Received a warm welcome on his return to Atletico for the first time since his summer 2007 move to Liverpool, but was so isolated. 6.
MARK SCHWARZER (for Cech, 18 minutes): The 41-year-old came on for his second Champions League appearance - he started the group match versus Steaua Bucharest - and performed well under a bombardment. 7.
ANDRE SCHURRLE (for Terry, 72): A reshuffle saw the German take Ramires' right wing-back position. 6.
DEMBA BA (for Willian, 90): The hero of the last round was brought on to run down the clock and was booked. 6.