Chelsea are going through a crisis of both results and displays prior to their much-expected Champions League tie against Lille at Stamford Bridge.The titleholders are favourites against the current French champion but will definitely need all the help they can get. Including the one coming from those until-recently sidelined players, like Mason Mount and Cezar Azpilicueta.Juve’s striker on a roll, Chelsea’s on a low – il Bianconeri and the Blues play their European fixturesAccording to The Athletic, Mount will not be fit enough to start in their Champions League round of 16 first leg against Lille on Tuesday but may be introduced from the bench.On the other hand, club captain Azpilicueta is on track to return after completing a training session on Sunday. Chelsea boss Thomas Tuchel gave some further insight into the squad’s depth and medical history.”Mason (Mount) did a very good individual session. I think he will try and come back to team training today,” Tuchel said on Monday. “He was out a little bit too long to start, but perhaps he is involved in the squad. He has not trained with the team yet.” Senegalese electrician to shock JuventusHudson-Odoi and Azpilicueta were surprise absentees on Saturday, with Tuchel confirming on the day that the pair had suffered late injuries and were ruled out. “Azpi looks much better than Callum,” Tuchel added. “Callum did not train yesterday, Azpi trained and has no reaction – if it stays like this, he is available for tomorrow (Tuesday).”UEFA CHAMPIONS LEAGUE1/8 finalsTuesday23:00: (1.32) Chelsea (5.40) Lille (12.0)23:00: (2.70) Villareal (3.05) Juventus (3.05)Wednesday23:00: (4.20) Benfica (3.70) Ajax (1.92)23:00: (2.65) Atl.Madrid (3.05) Man.Utd. (3.05)***odds are subject to change