Madison Keys beats Coco Gauff to reach Eastbourne International final against Daria Kasatkina

It was Keys' first grass-court victory over a top-10 player since beating Angelique Kerber for the Eastbourne title in 2014.

Madison Keys advanced to the Eastbourne International final by beating seventh-ranked Coco Gauff 6-3, 6-3 Friday.

US player Madison Keys reacts after winning a point against US player Coco Gauff during their women's singles semi-final tennis match (AFP)

It was Keys' first grass-court victory over a top-10 player since beating Angelique Kerber for the Eastbourne title in 2014.

Keys took control of the first set by breaking Gauff to 3-2 in the Wimbledon warm-up tournament. After fighting off a break point of her own in the next game, she eventually closed out the set with another break.

An early break in the second set put Gauff up 2-1, but she gave the game right back with three straight double-faults. Keys then broke again to go up 5-3 and clinched the win on her fourth match point in the next game.

Keys will next face ninth-seeded Daria Kasatkina, who beat Camila Giorgi 6-2, 7-5.

In the men’s semifinals on Friday, Mackenzie McDonald will take on fourth-seeded Francisco Cerundolo and Tommy Paul will play Gregiore Barrere.