London - Chelsea manager Roberto Di Matteo refused to speculate on his future at the club if the Champions League holders fail to secure qualification for the competition's last 16 on Tuesday.
The Blues were crowned kings of Europe for the first time last season, but face the formidable challenge of trying to overhaul former two-time winners Juventus on Tuesday.
With two games remaining in Group H, Shakhtar Donetsk, Chelsea and the Italian champions are all in the running for the top two places.
While victory would virtually secure Chelsea's place in the next round, defeat could spell disaster.
Di Matteo and Chelsea's challenge looks all the most pressing as it comes amid a slump which has seen them lose the Premier League lead, concede 17 goals in their past eight games in all competitions and lose 2-1 to West Bromwich on Saturday.
Asked if club owner Roman Abramovich has expressed concern, Di Matteo said: “We don't disclose these kinds of things, so I won't talk about that. I'm not thinking about that.
“I'm preparing for tomorrow and have some important decisions regarding the team selection.”
Di Matteo led Chelsea to Champions League triumph last season despite being on a caretaker manager's contract following the sacking of Andre Villas-Boas.
Two months after being held 2-2 at home by Juventus, he said the only thing on his mind is the task at hand.
“At the moment, we're thinking positive. We played a very good game at home against Juve,” he added.
“It will be a difficult game, but they're under pressure as well so it will make it an interesting game.” - AFP