[monks data]
The pair had to settle for a place on the bench during Saturday's 1-0 defeat at Everton in the Premier League.
Meanwhile, the Blues have no fresh injury concerns ahead of the match against the Swiss champions.
Chelsea failed to get out of the group stage of last year's competition but went on to win the Europa League.
No Data Analysis infoRestore Data
| Team | P | W | D | L | PTS | |
| 1 | Liverpool | 4 | 4 | 0 | 0 | 12 |
| 2 | Sporting Lisbon | 4 | 3 | 1 | 0 | 10 |
| 3 | Monaco | 4 | 3 | 1 | 0 | 10 |
| 4 | Dortmund | 4 | 3 | 0 | 1 | 9 |
| 5 | Aston Villa | 3 | 3 | 0 | 0 | 9 |
| 6 | Man City | 4 | 2 | 1 | 1 | 7 |
| 7 | Brest | 3 | 2 | 1 | 0 | 7 |
| 8 | Inter Milan | 3 | 2 | 1 | 0 | 7 |
| 9 | Juventus | 4 | 2 | 1 | 1 | 7 |
| 10 | B. Leverkusen | 4 | 2 | 1 | 1 | 7 |
| 11 | Lille | 4 | 2 | 1 | 1 | 7 |
| 12 | Arsenal | 3 | 2 | 1 | 0 | 7 |
| 13 | Celtic | 4 | 2 | 1 | 1 | 7 |
| 14 | Dinamo Zagreb | 4 | 2 | 1 | 1 | 7 |
| 15 | AC Milan | 4 | 2 | 0 | 2 | 6 |
| 16 | Feyenoord | 3 | 2 | 0 | 1 | 6 |
| 17 | Barcelona | 3 | 2 | 0 | 1 | 6 |
| 18 | Benfica | 3 | 2 | 0 | 1 | 6 |
| 19 | Real Madrid | 4 | 2 | 0 | 2 | 6 |
| 20 | Atalanta | 3 | 1 | 2 | 0 | 5 |
| 21 | PSV | 4 | 1 | 2 | 1 | 5 |
| 22 | Stuttgart | 3 | 1 | 1 | 1 | 4 |
| 23 | Sparta Prague | 3 | 1 | 1 | 1 | 4 |
| 24 | PSG | 3 | 1 | 1 | 1 | 4 |
| 25 | Bayern | 3 | 1 | 0 | 2 | 3 |
| 26 | Brugge | 3 | 1 | 0 | 2 | 3 |
| 27 | Girona | 4 | 1 | 0 | 3 | 3 |
| 28 | Atletico | 3 | 1 | 0 | 2 | 3 |
| 29 | Shakhtar | 3 | 0 | 1 | 2 | 1 |
| 30 | Bologna | 4 | 0 | 1 | 3 | 1 |
| 31 | RB Leipzig | 4 | 0 | 0 | 4 | 0 |
| 32 | Sturm Graz | 4 | 0 | 0 | 4 | 0 |
| 33 | Salzburg | 3 | 0 | 0 | 3 | 0 |
| 34 | Red Star | 3 | 0 | 0 | 3 | 0 |
| 35 | Young Boys | 3 | 0 | 0 | 3 | 0 |
| 36 | Slovan Bratislava | 4 | 0 | 0 | 4 | 0 |
