The return of Robert Lewandowski from injury has made Bayern Munich confident of overturning a first leg deficit and eliminating Real Madrid from the Champions League, according to Carlo Ancelotti.
Lewandowski missed the first leg at the Allianz Arena with a shoulder problem and in his absence, the German champions fell to a 2-1 defeat.
However, having him back is a big boost to Bayern's chances, insisted the Italian tactician as he returns to his former club after two years away.
"Lewandowski trained well on Sunday with the rest of the squad," Ancelotti told the assembled media in Madrid.
"In terms of the Real side, I don't know who [Zinedine] Zidane will replace [Gareth] Bale.
"Isco did well on Saturday, Lucas [Vazquez] always plays well and so does James [Rodriguez] but I'm only really focused on my players.
"Having Lewandowski back will help us. We won't change our strategy but having him back makes us more confident."
While Ancelotti was happy to explain what he felt went wrong for his side in the first leg, he refused to focus too much on the fact that it may take a massive effort to stop a free-scoring Real side finding the back of the net.
"The small details cost us in the first leg like letting Cristiano [Ronaldo] get free to take a shot at goal and if you leave him a yard of space like that, he will score," Ancelotti added.
"Those are the little things that can cost you and they will be very important again on Tuesday.
"We know how dangerous Real are in front of goal but for us, 2-0, 3-1 and 3-2 would all be good but we aren't thinking about the result.
"It is true that Madrid score in almost every game because they have great offensive quality and are very dangerous but nothing will be decided until we step on to the field."