Cape Town - Manchester City goalkeeper Claudio Bravo could miss the remaining five games of the season after sustaining an injury in Thursday's 0-0 Premier League draw with rivals Manchester United.
Chilean Bravo was carried off on a stretcher in the 79th minute and replaced by Willy Caballero.
"Of course he has an injury, probably for some weeks," manager Pep Guardiola said after the game. "I don't know if he will be available again this season."
Meanwhile City striker Sergio Aguero was partly to blame for getting Marouane Fellaini sent off, said Manchester United manager Jose Mourinho.
Belgian midfielder Fellaini was red carded by Martin Atkinson for headbutting Aguero six minutes from time after the City star got to his feet having just been fouled by the United player.
Mourinho conceded some of the fault lay with Fellaini but added Aguero was savvy enough to exploit the headbutt.
Fourth-placed City, a point and a place above United, travel to relegation-threatened Middlesbrough on Sunday.