Speculation suggests the Netherlands midfielder is almost certain to leave the Italian outfit in the near future, though his contract does not expire until 2014.
Manchester United were heavily linked with a £25 million move for the 28-year-old last summer, but it has seemed Spurs were the favourites to secure his signature this time around after Andre Villas-Boas' missed out on Joao Moutinho.
Reports over the Christmas period claimed that the deal was close to completion but the Dutchman's camp have thrown the prospective transfer into doubt, indicating that the rumours are false.
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Many critics of Villas-Boas' side have suggested that the team are in dire need of a playmaker, with Luka Modric and Rafael van der Vaart both departing from White Hart Lane in the summer.
However, they face competition for the attacker's services with Bundesliga side Schalke and rich Russian outfit Anzhi Makhachkala also being touted as possible destinations for the midfielder.