Zdravko Kuzmanovic's agent has denied any club has made a firm offer for the Stuttgart star.
Arsenal, Juventus, Inter Milan and Sevilla are also said to be closely trailing the 25-year-old Serbian midfielder.
Kuzmanovic's current deal is due to expire at the end of the season and reports claim that he is already the subject of offers from abroad.
However, his agent has down played talk that his future has already been decided.
"I have not been out to do any formal talking yet," Marco Naletilli told EstadioDeportivo.
"Neither with Sevilla FC nor with any other club. Personally I feel it is way too early to discuss the future of Zdravko Kuzmanovic."