Carlos Alcaraz sets up semifinal match against Novak Djokovic at ATP Finals after beating Daniil Medvedev

Alcaraz came into his debut Finals appearance struggling with form and injury but has warmed up as the tournament has progressed and is now a serious threat in the semis, which features the world's four top-ranked players.

"Well, it's just two matches, but at the same time it's too far away. I have Novak in the semifinal. If I win that match, I have a really tough final," Alcaraz told reporters.

"I'm dreaming about winning this tournament. Why not? But I have to play my best first in the semi-final."