Nemanja Vidic will start the bidding for his services at a staggering £4million per season after tax. The Manchester United defender has confirmed he will leave after eight trophy-laden seasons with the club. Vidic will be one of the most sought after free agents in the summer transfer window - and the Serbian defender is ready to cash in on his status. Knowing this will be his last major playing contract, the central-defender, who currently earns in the region of £4.5million a year before tax, will demand a huge final pay-day before committing to his next destination. Vidic's officials have already held talks with various clubs about a Bosman move for next season. Sportsmail understands the 32-year-old already has up to five firm proposals from the European clubs to join next season. Among them are Galatasary, Inter Milan, Monaco and Zenit St Petersburg.