Overall, Graham Potter will be happy with how proceedings went in Austria as Chelsea secured their place in the knockout stages of the Champions League with a 2-1 win over Red Bull Salzburg.
However, the Blues boss revealed that midfielder Mateo Kovacic had picked up a potential issue in the second half of the Tuesday night clash. The Croatian was substituted in the 68th minute, after scoring the opening in the first half, and was replaced by Ruben Loftus-Cheek with Chelsea ahead.
The west Londoners already have a growing injury list amid a congested fixture schedule. Kalidou Koulibaly, N'Golo Kante, Wesley Fofana and Reece James are all unavailable after picking up unwanted injuries, leaving Potter limited in his selection.