According to MailOnline's Simon Jones, United are among those to take a keen interest in Kovacic's announcement of his desire to leave the Spanish capital, but Madrid "value him highly as a versatile and quality back-up to their midfield and are reluctant to sell".
The report further revealed that the Croatian worldwide, who is a three-time Champions League victor with the Los Blancos, is still under contract with the Santiago Bernabeu side until 2021.
As a result, any potential negotiations between United and the European champions won't be straightforward.
Kovacic has largely featured as an option from the bench during his three years in Madrid.
Uruguay wins Group A, Spain pulls out dramatic Group B
Just minutes later, however, a second penalty was given to Saudi Arabia, and this time converted by Salman Al Faraj. Spain , trailing Morocco 2-1, had an Iago Aspas goal, which was first called offside, allowed at the 90+2 mark.
NASA photo shows blue sand dune on Red Planet
South of this collection is a massive and more complex dune that appears a pretty turquoise when the color is enhanced. The planet is now battling a massive sandstorm that has silenced NASA's solar-powered Opportunity rover.
Pharmacist denies woman miscarriage drug on moral grounds
She says the pharmacist had "ultimately had it transferred to another location that had it in stock after I had left upset". And, she wants a law in place that would require pharmacies to fill prescriptions approved by doctors.