Dominic Thiem became the first player in four years to reach back-to-back championship matches at the Nitto ATP Finals on Saturday, as he earned a milestone 7-5, 6-7(10), 7-6(5) victory against World No. 1 Novak Djokovic.

The 2019 runner-up failed to convert four match points in a dramatic second-set tie-break, but held his nerve to rally in a final-set tie-break against Djokovic at The O2 for the second straight year. Thiem's victory was his 300th at tour-level and his fifth against a World No. 1. The last player to reach consecutive finals at the season finale was Djokovic (2012-16).