Vincent Kompany faces weeks on the sidelines after suffering another hamstring injury as his Anderlecht team lost again to continue their winless start to his managerial debut.
Kompany limped off with 15 minutes left in Friday's 1-0 loss at champions Racing Genk which left Anderlecht with two points from six matches in their worst start to a season in 21 years.
"It is too early to say how long he will be out but it looks like he'll have to miss at least one or two matches," Simon Davies, who is running the team from the dugout while the player-coach concentrates on captaining the side, told reporters.