Here are the sides Atletico Madrid and Chelsea have fielded for the first leg of the Champions League semi-final, kick-off at 19:45 GMT.
Atletico Madrid: Courtois, Juanfran, Miranda, Godín, Filipe, Mario, Gabi, Koke, Raúl García, Diego, Diego Costa
Subs: Aranzubia, Alderweireld, Tiago, Arda Turan, Rodriguez, Sosa, Villa
Chelsea: Cech, Azpilicueta, Cahill, Terry, Cole, Mikel, Luiz, Lampard, Ramires, Willian, Torres
Subs: Schwarzer, Ake, Kalas, Oscar, Van Ginkel, Schurrle, Ba
Jose Mourinho goes into this game knowing that it’s probably Chelsea’s best chance of winning a piece of silverware this season.
The Portuguese coach is at his very best at this stage of the season but he won’t be happy with the display his side produced against Sunderland last weekend, which has seen them concede ground to Liverpool.
Mourinho will drill discipline into his team in the build up to kick-off expecting them to be well in the tie by the time things get back to West London and the relative safety of Stamford Bridge.
Diego Simeone has worked wonders at Atletico Madrid this season and his side will be sky high after they defeated Barcelona at the quarter-final stage.
Atletico have a four point lead at the top of La Liga and a solid performance in this game could set Simeone’s side up for a double that no one would have predicted at the start of the season.