Chelsea boss Maurizio Sarri was pleased with Marcos Alonso's fight-back this week.
Sarri has commented on the current situation at left-back after Alonso returned to the starting XI for the midweek win over Tottenham and produced one of his top performances of the campaign.
"You have to accept a player cannot stay at the top of the physical condition or mental condition for 11 months," said Sarri, considering Alonso's previous performances for us.
"We were lucky because in that period we had a very good moment for Emerson. Now I think Marcos started to return to his best."