Manchester United will persist with their attempts to bring France international Paul Pogba back to the club, sources have told ESPN FC.
United sold a young Pogba to Juventus in 2012 before the midfielder had forced his way into Sir Alex Ferguson's first team plans.
But Pogba has gone on to develop into one of the most sought-after players in the world, winning four straight Serie A titles and impressing for both club and country in the past four seasons.
Manchester United are keen to bring Pogba back to Old Trafford, but have been told by Juventus that he could cost up to a world record fee of £100 million.
Real Madrid are also interested in Pogba and are widely regarded as the favourites for his signature, but sources have told ESPN FC that United think they have a "50-50" chance of signing the midfielder this summer.
Negotiations are also ongoing between free agent Zlatan Ibrahimovic and United following the striker's departure from Euro 2016 and subsequent international retirement.