The Frenchman will make his debut at the Next Gen ATP Finals presented by NEOM after enjoying a standout first year on Tour. The 19-year-old captured his first ATP Tour trophy on home soil in Lyon, reached the final in Antwerp and semi-finals in Montpellier, Marseille and Hamburg.
Fils started the season at No. 251 in the Pepperstone ATP Rankings but reached a career-high No. 36 in November.