Victory at the Paris Masters kept alive Novak Djokovic's hopes of finishing the season as world number one.
Novak Djokovic won his fifth Paris Masters title on Sunday, meaning he can still beat Rafael Nadal to finish the year as world number one.
Ashleigh Barty capped a dream season by winning the WTA Finals in Shenzhen, picking up $4.42million in the process.
Elina Svitolina is on course for a second successive WTA Finals triumph but must beat world number one Ashleigh Barty to achieve the feat.
Novak Djokovic saw off Grigor Dimitrov to set up a final clash with either Rafael Nadal or Denis Shapovalov in Paris.
Rafael Nadal overcame a stern test from Jo-Wilfried Tsonga in Friday's final match to progress through to the Paris Masters semi-finals.
Darren Cahill said Simona Halep was playing like a 'disgrace' during the WTA Finals, and the Romanian accepted her coach's criticism.
Novak Djokovic served up a masterclass as he made light work of Stefanos Tsitsipas in the quarter-finals of the Paris Masters.