Real Madrid will be without Gareth Bale but Bayern Munich welcome back Robert Lewandowski for Tuesday's Champions League quarter-final second leg at the Bernabeu.
Wales forward Bale is out because of an ankle problem he picked up in Real's 2-1 win in the first leg last week.
Lewandowski, who has scored 38 goals in 40 games for Bayern this season, has recovered from a shoulder injury.
The Poland striker has not played since 8 April.
Robert Lewandowski said he "felt fine" after returning to training on Sunday
Bale has struggled with injuries this season, having missed three months earlier in the campaign because of ligament damage in his right ankle.
"When he came back he was desperate to be involved and now he has a small niggle that is preventing him from being fully fit," Real coach Zinedine Zidane said.
"I hope it is nothing and in a few days he can be with us again."
Bale's latest injury could rule him out of Sunday's La Liga match with Barcelona.
"I hope he will be with us, but we have to wait and see," Zidane added. "It is a question of taking it day by day."
Real eye record – the stats
All five previous teams winning 2-1 away from home in the first leg of their Champions League knockout tie have progressed to the next round.
This is the 24th European Cup/Champions League fixture between Bayern Munich and Real Madrid – the 18th under the Champions League era – a record in the history of the tournament.
Bayern Munich and Real Madrid are perfectly level in their European Cup/Champions League knockout encounters, progressing five times each.
Bayern have lost eight of their last 10 away games against Real in all competitions (W2), including the last five. In fact, Bayern last beat Real Madrid at the Bernabeu in May 2001 thanks to a goal by Giovane Elber (1-0).
Real Madrid have reached the semi-finals in each of the previous six seasons. A seventh in a row would constitute a new record.
Since 2010-11, Real Madrid have won 34 of their 40 Champions League games at the Bernabeu (D4 L2). Their two defeats during that time were against Barcelona in April 2011 (0-2) and Schalke in March 2015 (3-4).
Real Madrid have also never failed to score in their last 34 Champions League home games, longest ever run in the competition. Barcelona were the last team to leave the Bernabeu with a clean sheet (2-0 in April 2011).