Celtic's dismal European away record continued with a 2-0 defeat to Atletico Madrid in their Europa League Group I opener in the Vicente Calderon stadium.
The Hoops were still warming to their task when Colombian striker Radamel Falcao met a Diego corner in the third minute to head past Hoops keeper Fraser Forster.
Diego added the second in the 67th minute to leave the Parkhead men with one away win in Europe in 31 games ahead of Sunday's Old Firm clash at Ibrox.
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