Chelsea were today sweating on the fitness John Terry and Frank Lampard for their Barclays Premier League game at Bolton.
Manager Carlo Ancelotti revealed this afternoon captain Terry and vice-captain Lampard were both doubts for Monday night's trip to the Reebok Stadium.
Ancelotti was more confident of Terry's fitness, with the defender having picked up a back injury this week, but he admitted he had no idea if Lampard would be available.
The Italian's revelation came just 24 hours after the club played down a calf problem suffered by the 32-year-old, saying he was expected to be fit for Monday's game.
Should either he or Terry - or both - miss out, it would be a big blow for the champions, who are still trying to get their season back on track following their worst run in the league for almost 15 years.
That sequence co-incided with injuries to Lampard and Terry and there will be concern among fans over whether Chelsea would be able to cope without them at high-flying Bolton.
Ancelotti said today: "We've got three days to check them and take a decision on the game.
"We have more possibilities with John Terry. Lampard, I really don't know if he's available or not."
The twin injury scare also reinforced the need for Chelsea to bring in cover before the end of the transfer window.
The club have so far been frustrated in their attempts to make signings, with Steven Pienaar having opted to join Tottenham after the Blues refused to meet his wage demands.
They also saw a £17m bid for Benfica defender David Luiz rejected at the end of last month and are reportedly haggling over a revised fee for the 23-year-old.
It has been claimed that Pienaar snubbed Chelsea because he was unimpressed by talks held with Ancelotti, who today denied any such meeting had taken place.
"I've never met Steven Pienaar in my life," he said.
"I didn't search (for) Steven Pienaar to come here to play for Chelsea.
"We don't need a midfielder - we have fantastic midfielders here already."
He added of Luiz: "Until now, there's no news. David Luiz is not here and will not be available for the game.
"So it's not right to speak about this.
"I'm waiting until the end of the transfer window.
"If there are new players, it means we needed those new players. If there are not, we didn't need them."
Udinese have also claimed they had held discussions with Chelsea about winger Alexis Sanchez, but Ancelotti said: "It's not true that we've spoken with the owner of Udinese.
"I don't like to speak about this because it's confidential."
Chelsea will travel to Bolton looking for a third straight win having thrashed Ipswich in the FA Cup before beating Blackburn in the league.
But the litmus test for their revival will come away from home, with victory having eluded them on their travels since October.
Five of their next six fixtures are away - including three in a row.
"We didn't take good results away from home, I know this," said Ancelotti, whose side will start the weekend in fourth, seven points behind Manchester United having played a game more.
"This is the reason we've lost our position in the table.
"But, to be objective, we played badly against Wolves and Marseille.
"When we deserved to win - against Birmingham, Tottenham also - we were a bit unlucky.
"We had a lot of chances at Birmingham to score, and we missed a penalty at the end of the game against Tottenham.
"Those performances weren't so bad, but the results were obviously no good."