Frank Lampard feels Chelsea's profligacy in front of goal has again cost the team three points as they only managed to draw 2-2 with 10-man Arsenal at Stamford Bridge on Tuesday.
Former Blues centre-half David Luiz was shown a red card midway through the first half, with Jorginho converting the resulting penalty to start what looked like a routine victory.
But despite the Gunners forcing an equaliser through Gabriel Martinelli, Chelsea again went ahead through Cesar Azplicueta's close-range goal. However they were denied the win when Hector Bellerin's curler snuck in at the far post on 87 minutes.