World number one Novak Djokovic moved into the third round of the Paris Masters with a 7-6 (7-2) 6-4 victory over France's Corentin Moutet.
Djokovic, 32, has won this competition four times and proved too good for 20-year-old Moutet, 97th in the world.
After winning the first set on a tie-break, Djokovic gained a break of serve early in the second on his way to the win.
Elsewhere, four seeded players were knocked out in round two on Wednesday.
Canada's Denis Shapovalov came from a set down to beat Italian 11th seed Fabio Fognini 3-6 6-3 6-3, while American 15th seed John Isner, who lost to Britain's Andy Murray in the 2016 final, was eliminated, losing 7-6 (7-5) 7-6 (7-4) to Cristian Garin of Chile.