Didier Drogba made a scoring return to European action to help Chelsea through to the last 16 of the Champions League, even though his brace could not help the Blues continue their 100% record as they drew 2-2 with Atletico Madrid.

Drogba had missed Chelsea's opening three Group D games through suspension, but he was brought straight back into the starting line-up and looked to have earned Carlo Ancelotti's side the win with two goals in the last eight minutes.

Those strikes cancelled out a stunning volley by Atletico striker Sergio Aguero in the 66th minute, but the young Argentinian had the last say as he curled home a brilliant injury-time free-kick to salvage a 2-2 draw for the hosts.

Drogba was handed the ban following his foul-mouthed confrontation with Norwegian referee Tom Henning Ovrebo at the end of May's Champions League semi-final exit at the hands of Barcelona. The in-form striker, who has scored nine goals in the Premier League already this season, had served his punishment though and was included.

Aguero, brought on after 53 minutes opened the scoring after 66 minutes, slamming in an unstoppable volley after John Terry's flicked clearance, before Drogba drew Chelsea level in the 82nd minute when he rose the highest to put away Florent Malouda's corner.

He then looked to have clinched victory two minutes from time when he latched on to Ashley Cole's through-ball and slotted home at the second attempt after Andres Sergio Asenjo saved his initial effort, only for Aguero to curl home a 25-yard free-kick a minute later.