Terry suffered a hamstring injury during Saturday’s 5-1 thrashing of Newcastle and is now a major doubt for tomorrow’s Champions League clash with Paris St-Germain.
If he is ruled out Chelsea will be forced to start the last-16 tie with Branislav Ivanovic and Gary Cahill at centre half, as Kurt Zouma is already out injured long-term.
Cahill said: “We’re keeping our fingers crossed for John. We have to prove that we’re a good team and good players on the biggest stage.
“It’s massive. We all realise, the players at the football club, that it’s a big competition and a big game. I had experience of going all the way in 2012 and it lives with you forever.
“I remember thinking at the time that we’re going to have to win this to get back into the Champions League. I think it was about the next game and the next game.
“We can’t look too far beyond because that’s where you slip up. You have to focus on the first game.
“It’s half a game, if we get a half-decent result over there, realising that they’re 20-odd points clear in their league waiting for this game to come around.
“They’re near enough done in their league so they’re waiting for this game and we need to be aware of that and approach it in the right way.”
