Novak Djokovic reached the quarter-finals of the Paris Masters with a straight-set win over Karen Khachanov.
The 21-time Grand Slam winner, 35, will next face the third seed, Denmark's Casper Ruud, or Italy's Lorenzo Musetti for a place in the semi-finals.
Earlier, world number one Carlos Alcaraz, 19, also reached the last eight with a straight-set win, beating Bulgaria's Grigor Dimitrov 6-1 6-3.
The Spaniard will face Russian seventh seed Andrey Rublev or Denmark's Holger Rune next.
Djokovic has won the title in his past two appearances, in 2019 and 2021, winning 16 of his past 17 matches in Paris - with his only loss coming against world number 19 Khachanov in the 2018 final.