Liverpool now know what must happen if they are to win the Premier League title.
The Reds have one league fixture remaining this season, which sees them welcome Wolves to Anfield on Sunday. It will be the 62nd of what will be a 63-game campaign for Jurgen Klopp's side in all competitions.
Liverpool are now one point behind leaders Manchester City after their 2-1 win at Southampton. After going behind to an early Nathan Redmond strike on Tuesday night, the Reds got the victory needed thanks to goals from Takumi Minamino and Joel Matip.
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The result means that Liverpool will go into the final day of the campaign still in with a chance of winning the league title. While the Reds host Wolves, City face Steven Gerrard’s Aston Villa at the Etihad Stadium.
After beating the Saints, Liverpool must beat Wolves and hope that City fail to beat Villa at home . If that happens, the title will be heading to Anfield.
But what happens if City lose to Villa and Liverpool only draw with Wolves to both finish level on 90 points?
First of all, goal difference would decide the title. And that is hugely in City's favour at present. They have a goal difference of +72. The Reds have +66.
The second criteria to be applied if goal difference cannot decide a winner would be goals scored. And if a winner cannot still be declared at that point, it would go on total points in head-to-head matches during the Premier League season - and then away goals scored in head-to-head matches during the Premier League season.
However, both matches between Liverpool and City, at Anfield and the Etihad, this season ended 2-2.
Only if the clubs remain level after that will a one-off play-off game be needed.
Should that happen, it would be the first time in the history of top-flight English football that the title has been settled in such a manner. That seems highly unlikely, however.