Kompany out of Belgium’s Euro qualifiers
The former Manchester City captain will be absent for the matches against San Marino in Brussels on October 10 and the trip to Kazakhstan three days later.
Kompany had been out of action since August 23 when he picked up a thigh injury against Genk.
Wednesday’s return against Beerschot only lasted 25 minutes before he limped off with an injury in the same place.
Anderlecht have not specified the exact nature of the injury.
Belgium have won all six of their qualifiers so far and will qualify for 2020 Euro if they beat San Marino.