Manchester City have moved 13 points clear at the top of the Premier League by beating West Ham while Brighton were left reeling by a refereeing decision.
Manchester City keep on winning in their surge to the Premier League title.
But for Brighton & Hove Albion they keep finding creative ways to lose in their plunge toward the relegation zone.
The league followed a familiar script on Saturday, complete with the latest VAR farce.
With a scrappy 2-1 victory over West Ham, City extend their winning run to 20 games in all competitions and established a 13-point lead that seems destined to culminate with their fifth top-flight trophy in 10 years.
The fact that City's goals came from their two centre backs - Ruben Dias and John Stones - highlighted the difficulty the leaders had at Etihad Stadium against a fourth-place West Ham, showing their unlikely bid for Champions League qualification is no fluke.
"After 15 minutes, we said, 'OK, today we are not going to paint something beautiful. Today is the day just to take the three points,"' City manager Pep Guardiola said.
Dias headed in a wonderful cross from Kevin De Bruyne in the 30th minute for his first goal for the club, only for Michail Antonio to equalise just before halftime for the first goal City have conceded at home in two months.
Stones grabbed the winner by sweeping in a finish from Riyad Mahrez's pass in the 68th.
It was a significant day at the other end of the standings, as well, with Brighton somehow contriving to lose 1-0 at West Bromwich Albion in the most mystifying way possible.
Graham Potter's side missed two penalties and also had a goal from a free kick ruled out because of the incompetence of referee Lee Mason amid farcical scenes at The Hawthorns.
Lewis Dunk curled in a quickly taken free kick a split second after Mason blew his whistle for play to restart.
However, Mason blew for a second time just as the ball was crossing the line, having seen that West Brom goalkeeper Sam Johnstone was still lining up his defensive wall.
Mason initially awarded no goal, then reversed his decision.
As chaos ensued the increasingly beleaguered Mason reviewed the incident on the pitchside monitor before again disallowing the goal.
"It's embarrassing, it's a horrendous decision," Dunk said.
"I said to the ref, 'Can I take it?' He blew his whistle and I took it.
"I don't think he knew what he was doing.
"He gave the goal, why did he give it?
"I don't know why VAR was getting involved. He said 'Goal'.
"You can look on the video if you want."
Kyle Bartley's goal earned West Brom only their third win of the season and moved the next-to-last team to within eight points of safety - leaving Brighton just four points above the drop zone.
Elsewhere, Newcastle United are level on points with Brighton after drawing 1-1 with Wolverhampton Wanders while Anwar El Ghazi's early goal gave eighth-place Aston Villa a 1-0 win over mid-table Leeds United.