Roma are trying to buy the 50% of Radja Nainggolan's rights they don't own, but Juve are moving quickly to stop them.
Roma, who paid €6m to Cagliari for 50% of Nainggolan's rights, now want the other half, but his great form means they've raised the price.
Juventus are trying to sign Cagliari's half, so that, if Roma wanted to keep Nainggolan, they'd need to pay way over the odds to do so.