Real won the first leg 3-0 and should have sealed the tie, but Angel Di Maria's early penalty was saved.From then on, the hosts took control as Marco Reus rounded Iker Casillas and then rifled in from close range to put the hosts close to forcing extra-time.Henrikh Mkhitaryan hit the post, but Real held on to progress.The Spanish side were overwhelming favourites to progress before kick-off, but they were second best throughout to a superb Dortmund side at Signal Iduna Park.Real are all too aware of Dortmund's free-scoring capabilities at home, having suffered a 4-1 defeat that ultimately cost them a place in last year's Champions League final.Robert Lewandowski scored all four of Dortmund's goals on that occasion and he returned to the German side's starting line-up for this game after missing the first leg through suspension.But before he even had chance to make an impression, Real should have been ahead. They were awarded a penalty when full-back Lukasz Piszczek was adjudged to have handled Fabio Coentrao's cross inside the area, but Di Maria hit the resulting spot-kick straight at goalkeeper Roman Weidenfellar.That, though, was to prove to be the visitors' only real chance of the first half as Dortmund set about staging what would have been a remarkable comeback.They took the lead when Pepe weakly headed Piszczek's long ball out of defence short of Casillas. Reus raced in to steal possession before knocking the ball past the Real goalkeeper and slotting into the empty net.With Cristiano Ronaldo, who injured his knee in the first leg, on the bench and Gareth Bale, Karim Benzema and Di Maria struggling to make an impression, Dortmund continued to attack a clearly rattled Real backline. Lewandowski felt he should have been awarded a penalty when he fell inside the area as he challenged for the ball with Sergio Ramos.Only Deportivo La Coruna have come back from a three-goal deficit in the Champions League, when they beat AC Milan 4-0 in 2004. Real coach Carlo Ancelotti was in charge of the Milan side then and he must have feared history was to repeat itself when Reus scored again.The Germany international fed a pass to Lewandowski just inside the area and, though the striker's shot struck the bottom of the far post, Reus raced onto the rebound and smashed it into the roof of the net.Real improved after the break, with Bale in particular imposing himself on the game as he twice threatened, first forcing a good save from Weidenfeller before curling a low effort just wide of the far post after breaking into the box.However, only the woodwork prevented Dortmund from levelling the tie as Reus's smart ball slipped in Mkhitaryan, who rounded Casillas but hit the post.Dortmund had just one more chance to level the tie as Mkhitaryan received the ball unmarked in the middle of the area, but his shot was straight at Casillas.Real Madrid coach Carlo Ancelotti:"We played a very slow game, with many errors and no confidence. After the penalty a bit of fear crept into the team."Every game is difficult at this stage and we saw that today. It was a night of struggling, of suffering but at the end we are just happy to have made it into the semis.""Cristiano Ronaldo was fine, we didn't want to risk him, because of the intensity of the tie, and we didn't have to."Hopefully he's better soon and he is ready for the semi-final. It's not a big problem because if it were, he wouldn't have been on the bench. He has time to recover and could play on Saturday."Borussia Dortmund coach Jurgen Klopp:"You could make a video of this game and show it to the teams that lose a first leg 3-0."My players wanted to go through but we were missing that one goal we did not score in Madrid last week."The lads gave it everything they had and I have no idea how many kilometres they ran today."(BBC)ANN.Az