Chelsea will be without England forward Raheem Sterling for the first leg of Wednesday's last-16 Champions League tie at Borussia Dortmund.
Joao Felix, Enzo Fernandez and Mykhailo Mudryk may start, and Kalidou Koulibaly and Wesley Fofana are also travelling.
Dortmund's teenage forward Youssoufa Moukoko is out with an ankle injury.
Former West Ham striker Sebastien Haller or French forward Anthony Modeste are expected to start in place of the 18-year-old.
The German side have won all six of their matches this year and currently sit third in the Bundesliga.
However, head coach Edin Terzic says it will be difficult to know what to expect from their English opponents with Chelsea spending lavishly on the likes of British record signing Fernandez in January while still being without the likes of N'Golo Kante and Mateo Kovacic.