Rafael Nadal kept alive his hopes of a first ATP Finals title yesterday, beating defending champion Stefanos Tsitsipas 6-4, 4-6, 6-2 in London to qualify for the last four.
The Spaniard whose haul of 86 singles titles includes just one on indoor hard courts is chasing the biggest prize missing from his resume at the eight-man elite event.
The 34-year-old has qualified for the ATP Finals for a record 16 consecutive years but has been forced to withdraw on six occasions.
The second seed won his opening round-robin match against Andrey Rublev but defeat against Dominic Thiem meant he faced a shootout against 2019 champion Tsitsipas to reach the semi-finals.
Both players were rock solid on serve until Nadal earned the first two break points of the set in the seventh game, which he failed to convert.