Sarri said: "What pleased me about tonight was just the result".
Cesc Fabregas was left out of the 19-man Chelsea squad that travelled to Belarus on Wednesday after suffering a fever, and Sarri revealed Alvaro Morata has stayed in the United Kingdom to rest after his two-goal contribution against Palace.
The best thing about this evening was the result.
"Cesc Fabregas is a great player but Kovacic gives Chelsea what Cesc can't do, and that is drive and take players out of the game from a central position".
'Today I was in trouble, too, ' Sarri said afterwards. There was all the conditions to play very badly, for the cold, for the opponents, for the pitch, for everything.
Chelsea fans fume after frustrating first-half against BATE.
The Daily Mirror is claiming that the east London club are keen on a move to try and bring the England global to the London Stadium for the second half of the current campaign.
Giroud was the difference between the two sides as he used his size and strength to good effective in the air, ending his run without a goal on 52 minutes in Belarus.
"It's very important because then we can talk again about this competition in February".
"In the last match he played only for 30 minutes".
Chelsea went straight onto the front foot after the restart - presumably after some stern words from Sarri - and the visitors found the breakthrough in the 52nd minute as Giroud directed a glancing header inside the near post after meeting Emerson's cross from the left flank.
'And so for his confidence I think it's very important.
'But I don't want him to be anxious about scoring because, for us, he's very important and very useful.
'But I know very well that strikers want to score.