Chelsea failed to progress from the group stage of the Champions League before Christmas but have excelled in the Europa League and face a two-legged semi-final against Basel after seeing off Sparta Prague, Steaua Bucharest and Rubin Kazan.
England defenders Ashley Cole and Gary Cahill are in Chelsea's squad for Thursday's Europa League semi-final first leg at Swiss side FC Basel.
Cole has not featured since suffering a hamstring injury on 1 April, while Cahill had knee surgery on 30 March.
Brazil forward Oscar is also included, despite a groin problem.
Basel are without forward Alex Frei, who has retired since the team knocked out Tottenham to become sporting director at Swiss League club Lucerne.
European clean sweep
Chelsea are bidding to become only the fourth side to win all three of Uefa's major club competitions. The Blues, who won the European Cup Winners' Cup in 1971 and 1998, plus last season's Champions League, would emulate Juventus, Ajax and Bayern Munich
The Europa League is the only trophy that Chelsea can still win this season, before interim boss Rafael Benitez relinquishes his role in the summer.
Basel beat Tottenham on penalties in the quarter-final after drawing 4-4 on aggregate, with the two sides sharing a 2-2 draw in the second leg at St-Jakob Park.
The winners of this two-legged semi-final tie will play Fenerbahce or Benfica on the 15 May final in Amsterdam.
Chelsea forward Fernando Torres said: "We have a young squad, we need to learn winning ways and this is a very good way.
"Now we're in the semi-finals everyone can see we want to win and the team I think is happy.
"The competition is helping the team a lot because it is giving us a lot of satisfaction - not like in the Premier League this season, and we lost the semi-final of the FA Cup, so we were also close.
"But the Europa League is keeping us in a good mood and thinking it could be a good season."
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