Chelsea have drawn Atletico Madrid in the Champions League semi-finals, which is set to open a huge debate as to whether Thibaut Courtois will face his parent club. Jose Mourinho’s side will face this season’s surprise package with the first-leg set to be played at Atletico’s Vicente Calderon on April 22nd. The only two previous meetings between the sides in the Champions League was in the 2009/10 season when Chelsea won 4-0 at Stamford Bridge and drew 2-2 in Madrid. The two also met in the 2012 European Super Cup which saw Atletico trounce the West Londoners 4-1. The big talking point will be whether Atletico goalkeeper Thibaut Courtois, on loan from Chelsea, will be allowed to face his parent club. Chelsea have defended that a clause was agreed at the start of the campaign which stated that Atletico would have to pay a large fee in order for the player to be eligible to compete against them. However, a UEFA statement earlier today confirmed that no such deals are allowed to be made and Chelsea could face sanctions if they were to forbid the Belgian from playing.