 Messi almost had a hat-trick of free kicks in the 89th minute, but his attempt hit the crossbar.Barcelona introduced Pedro in place of Mascherano at the start of the additional half-hour.With five minutes to play in the second half of extra time, he pounced on the rebound from yet another Messi free kick to put Barcelona ahead, just as he had against Shakhtar Donetsk in 2009.