Inter chief executive Giuseppe Marotta said Lautaro Martinez "must find peace of mind" amid strong links to La Liga champions Barcelona.
Lautaro - who moved to Milan from Racing Club in 2018 - has been tipped to swap Serie A side Inter for Barca at the end of the 2019-20 coronavirus-hit season.
The Argentina forward had scored 16 goals prior to the campaign being halted in March due to the Covid-19 pandemic but he has only netted once in six games since the restart, missing a penalty in Sunday's 2-1 loss to Bologna.