Chelsea manager Maurizio Sarri said he was satisfied with how his side “endured” before beating Slavia Prague in their Europa League quarter-last first leg.
Marcos Alonso’s late goal verified a 1-0 win from a troublesome match in Prague.
Sarri said his side have improved from before in the season, when they would “promptly yield” in troublesome minutes.
“In the past we were not ready to endure in the troublesome snapshots of a match,” said the Italian.
“Presently we can remain in a bad position and endure without surrendering.”
An under-quality Chelsea attempted to discover any mood for extensive spells, yet developed into the diversion after Eden Hazard was presented off the seat just before the hour mark.
Alonso planned his run flawlessly to meet Willian’s conservative cross with a firm header a little ways from time at the Eden Arena.
The second leg at Stamford Bridge happens on 18 April.