"atp-tour-finals"

The Russian was on top form in a high-quality encounter, winning 5-7, 6-4, 6-1 to secure his first trophy of the season and the eighth of his career.

The top seed edged a tight second set before racing through the decider to win 4-6, 7-5, 6-1

Top seed Nadal got the better of Thompson 6-1, 7-6 (7/3) to set up a last-eight clash with fellow Spaniard Pablo Carreno Busta