Dominic Thiem has stormed into the semi-finals of the ATP Finals.
He's become the first player to qualify for the final four after upsetting Novak Djokovic in three sets.
Meanwhile, seven-time Dubai Duty Free Tennis Championships winner Roger Federer returned to winning ways with a straight-sets win over Matteo Berrettini.
That means he'll now take on Djokovic for a spot in the semi-finals.


Sinner beats Lehecka in Miami final to capture 'Sunshine Double'
Pakistan board charges Fakhar Zaman with ball‑tampering in PSL match
France showcase firepower and squad depth in Colombia win
Egypt national team director warns Salah against MLS move
Bezzecchi wins USA Grand Prix to extend perfect start to season
