United have mustered three wins all season and eight points from their first seven league games is the club’s lowest tally since the 1989-90 campaign.
The Dragons return to Nations League action in Iceland on Friday and welcome Montenegro to Cardiff three days later.
The match had been delayed by almost 90 minutes by thunderstorms in Pittsburgh.
The City number one was the subject of interest from clubs in Saudi Arabia in the summer.
Both quarterbacks starred as Joe Burrow completed five touchdowns and Lamar Jackson threw for four.
Spurs were brought back down to earth after recent wins on the road at Ferencvaros and Manchester United.
Georginio Rutter scored the equaliser and set up Danny Welbeck’s winner to earn Brighton all three points.
A crowd of 61,139 were in attendance on Sunday.
Virtuality all 22 players plus substitutes were involved in the late disorder.
Ten Hag’s Manchester United drew 0-0 at Aston Villa on Sunday afternoon.
Co-owner Sir Jim Ratcliffe sidestepped a question about Ten Hag’s position ahead of the trip to Villa Park.
The Denmark international was central to the Bees’ 5-3 victory against Wolves at the Gtech Stadium on Saturday.
Noni Madueke cancelled out Chris Wood’s second-half strike.
The Red Devils only have two wins to show from their opening seven Premier League matches.
The Spaniard’s security in midfield will be missing after he was ruled out for the rest of the season with a serious knee injury last month.
