London, Dec 13 : Ahead of their Premier League match against Brentford, Manchester United have recorded a number of positive Covid tests among their players and staff. It is understood that all players tested negative before their game against Norwich on Saturday. But a number of players tested positive before training on Sunday morning. The club has reported the cases to the Premier League and their match against Brentford on Tuesday is now in some doubt, a BBC report said. The people who tested positive were sent home before training. The rest of the squad trained and practice was adjusted to individual and non-contact sessions. Aston Villa also had one positive Covid case on Sunday, which meant that an indoor recovery session was cancelled as a precaution rather than have members of the squad recovering inside the training complex at Bodymoor Heath. Earlier, Tottenham also had a coronavirus outbreak last week, forcing the postponement of two of its games - including a match at Brighton in the Premier League. /IANS