Chelsea icon Gianfranco Zola believes head coach Graham Potter has too big a squad.
The Blues have bought in a significant quantity of players, both in the summer and winter transfer windows.
The result is a bloated squad, with many first teamers not even making their Premier League or Champions League squad lists.
I can understand it's difficult at the moment because you have so many players," Zola told Sky Sports.
Enzo, I was so impressed with his qualities. The speed of mind when he's playing, in a way it reminds me of Cesc Fabregas," Zola added on new arrival Enzo Fernandez.
Chelsea lost the first leg of their Champions League round of 16 tie against Borussia Dortmund, going down 1-0 in Germany on Wednesday.