Madrid: Lionel Messi scored late in the first game to give the Catalan giants the advantage against Atletico Madrid, but the home side's in-form French striker Antoine Griezmann believes Diego Simeone's men can turn the tie around.
Griezmann is plotting to end Barcelona's six-game winning run by knocking them out of the Copa del Rey tonight. The Catalans head to the Vicente Calderon with a slender lead 1-0 lead from the quarter-final first leg at Camp Nou last week.
Luis Enrique men are brimming with confidence after following up that win with a 6-0 hammering of Elche away on Saturday to remain just a point adrift of Liga leaders Real Madrid.
Barca have won their last six games in all competitions and have not conceded a goal in their last four outings. Griezmann scored twice as the reigning Spanish champions beat Rayo Vallecano 3-1 over the weekend, and is ready to inspire a second-leg fightback from his side.
He said: "We have to be strong here, we'll give our all. And with support of the people, we'll try to make the semi-finals. If we didn't believe we could come back, we wouldn't go on the field."
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