Willian equalized again straight after the break with an almost carbon copy of his first goal , this time with his left foot , but Chelsea hit back again as John Obi Mikel had a goal ruled out for offside and Last season 's Champions League finalists Barcelona qualify for first round in 2012 - 13 . Spanish club could have qualified for last 16 but went down 2 - 1 away to Celtic . Champions Chelsea snatch injury - time win at home to Shakhtar FC . Manchester United through to group stage after fourth successive win .
Last season 's Champions League finalists Barcelona qualify for first round in 2012 - 13 . Spanish club could have qualified for last 16 but went down 2 - 1 away to Celtic . Champions Chelsea snatch injury - time win at home to Shakhtar FC . Manchester United through to group stage after fourth successive win .