Arsenal defender William Saliba is attracting rival interest.
With a year to run on his Gunners deal, management are moving to upgrade the agreement.
But RMC says pressure to secure Saliba's commitment is increasing due to outside interest.
Three major clubs, unnamed, are all in contact with the Frenchman's agents.
Saliba has been forced to the sidelines since suffering a back injury in March, which has coincided with Arsenal's title collapse.