Turkish-backed Syrian rebels are advancing on Dabiq, a symbolic stronghold of so-called Islamic State.
The small town holds great value to IS because of a prophecy of an apocalyptic battle, and features heavily in its propaganda.
The operation began as US and Russian envoys met in Switzerland to discuss
possible routes to a new ceasefire.
No statement was issued after the talks although both the US and Russian envoys spoke of “ideas” emerging.
Since a brief truce collapsed last month, Syrian government forces backed by Russian air strikes have intensified their bombardment of rebel-held areas in Aleppo.
The champions have a two-point lead at the top of the table, but Ancelotti felt his team were not alert enough and said he will consider changes for Wednesday’s Champions League game against PSV.
“We didn’t play well and showed a bad attitude,” Ancelotti said.
“We were asleep for the first 45 minutes, which is too much in any game.
“I have to change that, I want to see my team [play]. I’ll have to think about changes.”
Aid agencies say a 72-hour ceasefire is urgently needed to allow supplies in and civilians out of devastated areas in the east of the city.
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