Rafael Benitez
Benitez's career at Liverpool was illuminated by winning the Chnmpinos League in 2005. REUTERS

Chelsea have not approached Rafa Benitez over taking the managerial position at the club, according to his agent, with Manuel Garcia Quilon insisting that the Spaniard hasn't heard anything official over a spot becoming open at the club.

Andre Villas-Boas is coming under increasing pressure regarding his future at Stamford Bridge, and after the club lost 3-1 to Napoli in the first leg of the Champions League last 16, rumours went into overdrive over who his replacement might be.

Names such as Jose Mourinho and Guus Hiddink have often been touted in the past, but Benitez came up recently to make a possible return to the Premier League, and with the 51 year old boasting a Champions League trophy, he might be an attractive prospect to Roman Abramovich.

But Quilon insists that Benitez hasn't been approached by Chelsea at this stage, keeping in line with Villas-Boas' insistence that his job is not on the line.

"There is nothing official," he said, as reported by TeamTalk.

"It's only media speculation and we have not been approached by Chelsea. We would only evaluate that possibility once there is an offer."

Bentiez hasn't managed a club since leaving Inter Milan in 2010, but the former sweeper has always been held in high esteem with Liverpool fans for his contributions to the side.

Villas-Boas admitted this week as Chelsea dealt with the fallout from their Champions League loss that he would appreciate public support from above, but the former Porto man insisted he knew his job was safe.

"You have to understand that this club, from 2004 up to now, has made a dramatic change for the best in terms of their past," he said.

"To do that, you have to sometimes make changes because you cannot sustain the same habits that you had in 2004, when this environment and team was created to make a winning team.

"These words would be more valuable coming from the top. I cannot keep saying them but, as the voice of the club, I will continue to perpetuate this message because this is what we believe in."