Chelsea had controversial referee Damir Skomina and goalkeeper Petr Cech to thank as they clung on to beat 10-man Benfica 2-1 to set up a Champions League semi-final against Barcelona.

Card-crazy Skomina, whose performance in Arsenal's last-16 exit against AC Milan led to a three-match ban for Arsene Wenger, was at it again at Stamford Bridge as the Blues reached the last four for the sixth time in nine seasons.

Frank Lampard's debatable penalty opened the scoring in a first half which also saw Benfica captain Maxi Pereira dismissed. The visitors piled on the pressure and Javi Garcia's 85th-minute equaliser set up a tense finish, but substitute Raul Meireles slammed home on the break to seal a win in what was arguably the Blues' worst performance under Roberto Di Matteo.

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Topics:
Arsenal
Petr Cech
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