Chelsea stalwarts John Terry and Branislav Ivanovic fear for their futures at Stamford Bridge, according to the Mirror.
The Blues have endured a sluggish start to the season and have recorded just a single Premier League win, although they did get their Champions League campaign up and running with a 4-0 victory over Maccabi Tel Aviv on Wednesday.
Both Terry and Ivanovic have come in for criticism this term, with the former earning a red card in the 3-2 victory against West Brom last month, a week after he was hauled off at half-time in the 3-0 defeat against Manchester City.
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The duo, who were left out of the win in the Champions League, are out of contract at the end of the season and according to the Mirror they face a battle to earn new deals.
The paper adds that Jose Mourinho's squad feel the uncertainty over the pair's future is affecting confidence in the dressing room because both are imposing figures that are key to morale.
Chelsea face Arsenal in the Premier League next and there is no guarantee of either Terry or Ivanovic earning their places back.
The Blues will look to kickstart their season against the Gunners, who they lost to in the Community Shield back in August. Mourinho labelled the showdown as a 'big game', and believes Wednesday's win has set his side up for a win.
"We come with a different feeling. We can wake up with a different state of mind," he said. "Saturday is a big match, it's a great rival. This result can put us in a better situation."