Chelsea will find out who they will face in the Champions League semi-finals during Friday's draw in Switzerland.
After staging a dramatic comeback against Paris Saint-Germain in the previous round, the London side are hoping to win a competition they won in 2012.
Here is a guide to the sides the Blues may have to overcome to make the final in Lisbon.
Manager: Pep Guardiola
Best European result: Winners (1974, 1975, 1976, 2001, 2013)
Star player: Arjen Robben
Quarter final opponents: Manchester United ( Won 4-2 on aggregate)
Bayern are aiming to become the first team to win successive Champions League titles, while Pep Guardiola is hoping to join an exclusive club of coaches who have been victorious in the competition with two different clubs. Munich, who won the Germain league with seven games to spare, may be Chelsea's toughest semi-final opponent.
Manager: Diego Simeone
Best European result: Runners up (1974)
Star player: Diego Costa
Quarter final opponents: Barcelona (won 2-1 on aggregate)
The unfancied Spanish side caused a huge upset when they knocked Barcelona out in the quarter-finals. Coach Diego Simeone has transformed Atletico since taking over and they currently top La Liga ahead of city rivals Real Madrid and Barcelona. They also possess one of the most feared strikers in the world in Diego Costa who is rumoured to be a target for Chelsea this summer.
Manager: Carlo Ancelotti
Best European result: Winners (1956, 1957, 1958, 1959, 1960, 1966, 1998, 2000, 2002)
Star player: Cristiano Ronaldo
Quarter final opponents: Borussia Dortmund (won 3-2 on aggregate)
Carlo Ancelotti led Chelsea to a Premier League and FA Cup double but his current side could prove the toughest opponents for the Blues. With Cristiano Ronaldo, Gareth Bale and Karim Benzema, Madrid have one of the most feared strike forces in world football and they will be confident they can end their 12-year wait to reclaim the famous trophy.