Cristiano Ronaldo wants Toni Kroos to play in all the big games left for Real Madrid this season. "They've got a brilliant squad".
Madrid have never failed to progress after winning the first leg away from home in the Champions League.
Bayern Munich coach Carlo Ancelotti has warned his players they can not afford to let Cristiano Ronaldo out of sight when they take on Real Madrid at the Santiago Bernabeu on Tuesday.
Javi Martinez is suspended following his red card in the first leg and Mats Hummels (ankle) and Jerome Boateng (thigh) face late fitness tests.
Gareth Bale played at the Allianz Arena but will not face Bayern in Tuesday's second leg.
However, the visitors' chances of overcoming a 2-1 first-leg deficit were handed a huge boost as Bayern boss Carlo Ancelotti confirmed top scorer Robert Lewandowski will be fit to start.
Marco Asensio replaced the former Tottenham star at Bayern last week, but Isco could be the chosen one to take his place on Tuesday night after the former Malaga star scored a brace during Real Madrid's 3-2 win over Sporting Gijon on Saturday. "It's going to be decided in small details and we have to be ready", Zizou commented. The Poland worldwide will be crucial to Bayern's hopes of turning the tie around, with 15 goals in his last 11 games for the club in all competitions, given the Germans need at least two on Tuesday night. "We will go out to win the game and we'll not gamble".More news: Russia, Google reach $7.8 million settlement on Android case
Bale has had an injury-troubled season and will not be risked against Bayern, a muscle injury now having struck after the injury surgery he had earlier in the campaign.
The French manager expects Bale to be recovered for El Clásico but he has confirmed that the Welshman won't play against Bayern Munich: "Gareth has worked a lot to go back with the team after his injury".
Spain attacking midfielder Isco, who scored twice, including a last minute victor, in Madrid's 3-2 win over Sporting Gijon on Saturday, is likely to replace Bale - but Zidane was keep his cards close to his chest.
Lewandowski has seven Champions League goals, level with Borussia Dortmund forward Pierre-Emerick Aubameyang and behind only Barcelona's Lionel Messi (11) and Paris St-Germain's Edinson Cavani (8), this season.
The odds are clearly against Bayern, but there is hope for them. Yet, a defeat could still give the Catalans hope to revalidate the title ahead of the last five games of the season.
In the Champions League, the defending European champions haven't lost at home in 12 consecutive matches, winning nine of the last 10.
"We are Bayern, we know how to do it", Alonso told El Pais when he was asked his thoughts on a comeback.