Playoffs to decide Premier League Title?

Action from the match between Liverpool and Manchester United

The Premier League title race is on a knife edge, with Arsenal and Liverpool level at the top of the table and Manchester City just one point behind them with seven games to play.
Liverpool missed the chance to reclaim top spot when they were held to a 2-2 draw at Manchester United on Sunday after Arsenal’s win at Brighton the day before, while Man City kept up the pace with a 4-2 victory at Crystal Palace this weekend.
There is hardly margin for error now for these sides in the run-in.
But with the battle for the crown so close, there is the possibility two or even all three of these sides could finish the season level on points. What would happen then?
Incredibly, in one instance there would be a playoff to decide who wins the Premier League.
Arsenal are top of the league on goal difference and they have several other factors in their favour, should they be level with Liverpool and/or Manchester City at the end of the season.
However, if Liverpool and Manchester City get ahead of the Gunners and finish level on points, goal difference and goals scored then a Premier League title playoff decider between them will determine the champions. 

(Agencies)