The right to meet the world number one is on the line for Denmark's Holger Rune and American Frances Tiafoe at the Cincinnati Open

After the first two sets were shared - Rune has a 5-2 lead in the third and deciding set of the second men's semifinal.

Jannik Sinner waits for the winner in the title decider - after he outlasted third seed Alexander Zverev over three sets, and more than three hours.

The women's final is set - and will feature Aryna Sabalenka and Jessica Pegula .