Watch: Greek tennis player Stefanos Tsitsipas smashes headset in frustration at NextGen ATP Finals
Top seeded Stefanos Tsitsipas shrugged off a freak hand injury to reach the Next Gen ATP Finals championship match with a 4-3 (7/3), 3-4 (5/7), 4-0, 2-4, 4-3 (7/2) win over Andrey Rublev on Friday.