Manchester United are reportedly prepared to sell Romelu Lukaku to Juventus this summer providing that the Italian champions include Douglas Costa as part of their bid.
According to the Daily Mail, the Red Devils have now switched their attention to Costa, who was also linked with a move to the 20-time English champions in last summer's transfer window.
The Brazil international only scored once for the Serie A giants during a disappointing 2018-19 campaign, but he missed a lot of football due to troublesome hamstring and calf injuries.
The 28-year-old completed a permanent move to the Old Lady last summer after spending the 2017-18 season on loan from Bayern Munich.
United will continue their preparations for the new campaign against Norwegian side Kristiansund on Tuesday.