Chelsea reached the quarter-finals of the Champions League with a fighting display against 10-man Juventus which earned them a 2-2 draw (3-2 win on aggregate) in Turin.
Vincenzo Iaquinta put Juve level in the tie in the 19th minute but Michael Essien scored a vital away goal for the Blues in first-half stoppage time.
Juventus went back in front with a penalty from Alessandro Del Piero in the 74th minute but Didier Drogba wrecked their dreams of a comeback with Chelsea's second seven minutes from time.
Juventus were level in the tie as Iaquinta was put clear by David Trezeguet and lashed an angled dive beyond Petr Cech.
Chelsea were at the centre of controversy in the 44th minute when a free-kick from Drogba was clearly over the goal line but not given by referee Alberto Undiano or his assistants.
But seconds later it was immaterial as Frank Lampard's shot hit the underside of the bar and Essien, playing his first European game since being injured last September, bundled the ball home for the equaliser.
Essien's goal had capped a fine comeback for the midfielder who ruptured his knee ligaments on international duty with Ghana.
In the 54th minute, Giorgio Chiellini was shown a yellow card for upending Ballack and he was sent off in the 71st minute for a second bookable offence after fouling Drogba.
But referee Undiano was then at the centre of more controversy for awarding a penalty to Juventus in the 74th minute after Juliano Belletti was adjudged to have handled a free-kick by Del Piero. The Juve striker sent Cech the wrong way from the spot to give the Serie A side renewed hope.
But it was soon crushed by Drogba who side-footed a low cross from Belletti into the net in the 83rd minute to cap a fine night for Chelsea.
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