Frank Lampard will captain the side tonight with Gary Cahill and Branislav Ivanovic the centre-back pairing.
David Luiz plays in midfield and Eden Hazard is in a central position behind Fernando Torres, as he was in the first leg. The front four are unchanged from a week ago in Switzerland.
Ryan Bertrand replaces suspended Ashley Cole at left-back.
Basel captain Marco Streller has been passed fit so their three changes are all in defence. Former Liverpool full-back Philipp Degen is absent.
Chelsea are expected to line up in the following 4-2-3-1 formation:
1 Petr Cech
28 Cesar Azpilicueta
2 Branislav Ivanovic
24 Gary Cahill
34 Ryan Bertrand
4 David Luiz
8 Frank Lampard (c)
17 Eden Hazard
13 Victor Moses
9 Fernando Torres
Substitutes: 22 Ross Turnbull, 19 Paulo Ferreira, 26 John Terry, 57 Nathan Ake, 11 Oscar, 30 Yossi Benayoun, 10 Juan Mata.
Basel are expected to line up in the following 4-2-3-1 formation:
Sommer; Steinhofer, Schär, Sauro, Voser; Elneny, F Frei; Salah, Serey Die, Stocker; Streller (c).
Substitutues: Vailati , Marcelo Diaz, Ajeti , Park Joo Ho, D Degen, Cabral, Zoua.
The referee is Jonas Eriksson from Sweden.
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