David Luiz returns from suspension for the hosts, though Ramires is a yellow card away from picking up a one-match ban.
John Terry is also available after completing the 90 minutes against Brentford on Sunday, netting a late goal on his return from injury.
Demba Ba will drop back out of the side to be replaced by Fernando Torres however, as he is ineligible, while Benitez could rest a few players with a game at Man City to contend with on Sunday.
The likes of Vaclav Kadlec, Tomas Zapotocny, Marek Matejovsky and Josef Husbauer are one booking away from a suspension.
The visitors may make a few changes from the XI that started in the home leg, with the central strike role potentially up for grabs.
Prediction
The late away goal that Oscar netted in the reverse fixture last week is likely to prove key in this tie, as Sparta will need to be a little more expansive in search of goals themselves.
Chelsea have the quality to pick the Czech outfit apart if they are given any opportunities to counter and will take confidence from 3 wins last week in 3 different competitions.
Nevertheless the hosts are likely to have the big clash with City at the weekend on their minds and will need to guard against complacency on Thursday, with the fans expecting a comfortable victory.
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homaru
12 weeks ago
+3
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guckupu
12 weeks ago
+1
-4
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See all 2 commentsthis is sparta!......prague
Chels will win 2-0 or 3-0...