Willian suffered a hamstring injury during training, while Cucurella sustained a similar setback in the recent match against Leeds United.
“Estevao will be out for a little while longer, and Jamie Gittens is making progress in his rehabilitation. Unfortunately. Cucu is not available on Sunday,” Rosenior said.
As they prepare for the clash at the Emirates Stadium, Chelsea currently occupies fifth place in the Premier League standings, having played 27 matches this season.
Arsenal, on their part, tops the table with 61 points from 28 games.
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