Rafael Nadal celebrates en route to a hard-fought victory over Stefanos Tsitsipas. Getty
Rafael Nadal celebrates en route to a hard-fought victory over Stefanos Tsitsipas. Getty
Nadal beats Tsitsipas to book first ATP Finals semi since 2015
Spaniard triumphs 6-4 4-6 6-2 and will face Daniil Medvedev for a place in the final
