David Moyes confirms Billy Jones was taken to hospital as a precaution after he was stretchered off at the Stadium of Light on Saturday.
Sunderland had to look at a home game against Burnley as a chance to earn three much-needed points, but the Black Cats failed to find the finishing touch and played to a 0-0 draw.
Sunderland's Billy Jones is sidelined by a hamstring injury for the opening match against West Brom.
Sunderland have sealed the signing of West Brom defender Billy Jones on a free transfer after he rejected a new deal at the Hawthorns.
Billy Jones' return against Fulham was short lived as he exited just before the half and has been ruled out for the next month with a hamstring injury.
Billy Jones, who has made West Brom's right-back spot his own this season, is out for an indefinite time with a hamstring injury he picked up against Crystal Palace.