Chelsea have been told to up their bid for Roma midfielder Radja Nainggolan.

The Sun says the Blues are looking to land Luciano Spalletti's star midfielder this summer as Antonio Conte aims for immediate success at Stamford Bridge.

Nainggolan wants to remain in the capital but Roma will cash in if the price is right.

Il Tempo claims that the Serie A giants are holding out for no less than £35million, which has emerged as a serious problem in negotiations with Chelsea.

The former Premier League champions have submitted a bid worth £27m, which includes various bonuses, and are not willing to go higher for a player who turned 28 earlier this month.