According to Corriere dello Sport, the three sides have put on ‘a united front’ to strengthen their respective attacks and ensure Juve miss out on Icardi.
The newspaper talks up a three-way striker deal, which would see the Icardi join Napoli, Arkadiusz Milik head to Roma and Inter snap up Edin Dzeko.
However, it is warned the chain reaction will only be triggered if Icardi makes the first move and signs for Napoli.
While Icardi has been holding out for a move to Juventus all summer, two French sides, PSG and Monaco have reportedly made formal approaches to Inter for the two-time Capocannoniere winner.
Despite this anti-Juventus alliance, Inter would prefer to see Icardi playing outside of Serie A next season. While Icardi prefers to keep his family in Inter, the bright lights of Paris or Monaco could well catch the attention of Wanda.