|Tweet Fernando Morientes!
|Send your questions to former Real Madrid striker Fernando Morientes via @Heineken using #sharethesofa on Tuesday evening|
The Bundesliga champions are hoping to reach their third final in as many years, but will have to overturn a 1-0 first-leg loss against Carlo Ancelotti's men.
As the action unfolds at the Allianz Arena, Morientes will be tweeting for @Heineken in conjunction with Goal and you can send your questions to the Spaniard - who won the Champions League three times with Madrid.
To get involved, send your tweets to @Heineken and use the #ShareTheSofa hashtag to interact with the man who also made it to the final of the competition with Monaco.
Coverage starts at 19:30BST on Tuesday 29 April and will run until the final whistle.