Chelsea will be playing for more than just simple qualification when they travel to Napoli in the Champions League second round, first leg today.

It's a tie that could have far wider reaching consequences for both their coach Andre Villas-Boas and English soccer as a whole.

Villas-Boas, for many people's money, is living on borrowed time in the Stamford Bridge hot seat.

Rumors of dressing room dissent and some unsatisfactory results have made his position appear precarious.

Chelsea face a fight to finish in the top four in the Premier League, battling alongside Arsenal and Newcastle for that crucial fourth spot, and hence qualification for next season's premier European competition.

Villas-Boas admits he doesn't know if he will still be in a job if they fail to beat the Italians.

"It's not up to me to decide that, you have to ask that question to the right person," he said.

Chelsea are realistically England's last representatives in the competition after Manchester rivals United and City crashed out in the group stages while Arsenal's 4-0 thrashing at AC Milan last week made the second leg a formality.

With Chelsea's recent troubles, Napoli coach Walter Mazzarri said, "I'm sure they'll regroup for the occasion. But in any case it always depends on the unique moment, you also need the good fortune to be playing them in their worst (moment)."