Chelsea boss Andre Villas-Boas is adamant he has no concerns over Guus Hiddink becoming available on the managerial market.Hiddink left his position as Turkey head coach by mutual consent two days ago following the country\'s failure to qualify for Euro 2012.The 65-year-old, who won the FA Cup while caretaker Chelsea manager in 2009, was heavily linked with a return to Stamford Bridge in the summer, with reports claiming he was owner Roman Abramovich\'s No.1 choice to replace the sacked Carlo Ancelotti.The job went instead to Villas-Boas, who the Blues have repeatedly insisted was their primary target all along.Since leaving Turkey, Hiddink has been linked with a return to the club in a directorial capacity but Villas-Boas all but ruled that out on Friday.He also shrugged off the prospect of the Dutchman being parachuted in as manager - as he was almost three years ago when Luiz Felipe Scolari was jettisoned - should his own position come under threat.Villas-Boas said of Hiddink\'s current status as a free agent: \"I have no problem with it.\"Hiddink was only in charge of Chelsea for three months, losing just one Premier League game and a controversial UEFA Champions League semi-final on away goals.\"This was a good period for the club,\" said Villas-Boas. \"That doesn\'t mean he could always be as successful as that in a club of this dimension.\"But Guus is one of the best managers in the world.\"At the moment, there\'s not a vacancy. When there\'s a vacancy, I\'m sure that he\'ll be one of the top candidates.\"Hiddink, who is close to Abramovich and has reportedly advised the Russian in the past, may be more interested in a sporting director-type role.\"It\'s not structurally even thought about within the club,\" said Villas-Boas, who had \"no idea\" whether Hiddink continued to advise Abramovich.