Sporting CP manager Marcel Keizer has said it would be impossible for the club to replace Bruno Fernandes this summer amid continued speculation linking the midfielder with a move to Manchester United.
The Portugal international enjoyed a terrific 2018-19 season and has subsequently been linked with a number of high-profile clubs, including the Red Devils.
Speaking about the window, Keizer said he accepts that some of the club's best players will move on, with Fernandes being the most important, per Sport TV (h/t James Westwood of Goal):
"If it were up to me, the market would close, it's good enough for me.