On Centre Court, Spain will take on Croatia with the former knowing that a victory will secure a place in the Quarter-Finals after defeating Russia last night.
Rafael Nadal recorded his 25th consecutive Davis Cup singles victory defeating Karen Khachanov on Tuesday and he will hope to add to that tally. He could play Borna Coric as his opponent.
The Croatian's title defence isn't going to plan with Andrey Rublev claiming victory over Roberto Bautista Agut; which ensures Russia will finish above Croatia and only a massive win over Spain will help their cause.
On Stadium 2, it is a bit of a dead rubber as USA play Italy. It is an 11th meeting between the pair; as USA leads 7-3 in their Head 2 Head but both know that only a convincing win will give them a potential chance of Qualification.
Finally on Stadium 3, it is the opposite in the form of a straight shootout between Belgium and Australia. A Quarter-Final place will be on the line; with the winner guaranteed to move through with Canada but it will be a tie where every point is on the line as the loser could still move through.
Order of Play - Davis Cup Finals 2019
Centre Court -
Spain v Croatia
Stadium 2 -
USA v Italy
Stadium 3 -
Belgium v Australia