Despite Luiz being punished on the pitch courtesy of Antoine Griezmann's conversion, the incident still appeared to insense Keane.
After the match, the Belgian striker met two of his counterparts from Atletico and posted a picture with them on Twitter.
But the visitors kept pressing and Batshuayi, who replaced Morata, was in the right place at the right time to turn home a Marcos Alonso cross.
Atletico struggled to get into Chelsea's half but capitalised from their first real foray forward.
The Premier League champions play City at 5.30pm on Saturday.
Dybala's Juve host Olympiakos in the Champions League tonight. Why won't they let me go if they don't want me?
Atletico could only manage a draw in their opening fixture of the group stages.
Romelu Lukaku scored twice and Anthony Martial also shone as Manchester United cruised to a 4-1 win away to CSKA Moscow to stay perfect in Group A. In a decidedly safety-minded move, the home side assumed a rearguard action, falling back and denying Chelsea any easy opportunity to break them down. Morata latched onto a Hazard through-ball and outpaced his marker but clipped his shot just past the post and that looked to be it. There is nothing else to say. The kind of result that shows, after a season's absence from this competition, that Chelsea are back.
Wednesday also sees FC Barcelona look to continue their 100 percent start to the campaign when they travel to play Sporting Lisbon.
Do you something awesome to share with the world? "He is a top scorer so I am very happy for him".
"That didn't happen, then they were struggling".
Chelsea legend Gianfranco Zola believes that Chelsea are justified in their decision to sell Diego Costa to Atletico Madrid. "Now he is okay and ready to play the next game against Atletico Madrid".