“The worldu0027s top eight head to Saudi Arabia for the start of the three-day Riyadh Season World Masters on Monday, but face a battle in the world rankings when they return with the three remaining events of the season set to determine who become the sportu0027s No. 1 next season with Ronnie Ou0027Sullivan, Luca Brecel, Mark Allen, Judd Trump and Mark Selby all in the mix for top spot.”