Sheffield United boss Chris Wilder says his side "have to wise up quickly" after they were beaten by Southampton in a tight game at Bramall Lane.
The Blades have now won just one of their opening five games on their Premier League return.
Jannik Vestergaard's towering header gave 10-man Southampton a point after another moment of magic from Manchester United new boy Daniel James looked to have put them on course for victory at St Mary's.
Brighton manager Graham Potter said he "can't defend" Florin Andone's challenge which resulted in the Romanian's dismissal in the Seagulls' 2-0 defeat to Southampton.
"It didn't look like a great tackle," Potter told Match of the Day.
Nathan Redmond's wonder-goal was not enough for Southampton as they were held to a 1-1 draw by Huddersfield on the final day of the Premier League season
Southampton vs Huddersfield Town Highlights
Start date: 12.
West Ham United vs Southampton Highlights
Start date: 04. May 2019, 15:00
Location: London Venue: London Stadium
Referee: Stuart Attwell, England
Manager Manuel Pellegrini hailed West Ham's "special season" as their bid for a top-10 finish was enhanced with a comfortable victory over Southampton.