Who the remaining teams will face ahead of the final.
The draw for the 2013/14 Champions League sees Real Madrid take on Bayern Munich and Atletico Madrid will play Chelsea.
Reigning champions Bayern go into the last four as favourites as under talismanic head coach Pep Guardiola they have already won the Bundesliga title with a record seven games to spare.
They are also bidding to become the first club to win successive Champions League trophies since the competition was rebranded back in 1992.
However, Madrid have also looked strong in this year’s tournament and in Ballon d’Or holder Cristiano Ronaldo have the top-scorer this year with 14 strikes to date.
Los Blancos’ city rivals Atletico overcame fellow Spaniards Barcelona in the quarter-finals to reach this stage of the competition for the first time since 1974.
They are also the only team left in the tournament that have never won Europe’s biggest prize and it could be a bumper year for the club as they also top the Spanish top tier currently.
As for the Blues, their manager Jose Mourinho has now reached this stage of the Champions League more times than any other boss and is hoping to win it with a record third club.
Mourinho has previously triumphed with FC Porto in 2004 and Inter Milan in 2010, whilst Atleti head coach Diego Simeone is the only manager left who hasn’t lifted the trophy – as Guardiola has won with Barcelona and Carlo Ancelotti with AC Milan.
The first-leg of the semi-finals will be played on 22 and 23 April, with the second-leg following a week later on 29 and 30 April.