Madison Keys is the first American other than Serena and Venus Williams to earn a berth at the year-end WTA Finals in more than a decade. The last American outside of a Williams at the finals was Lindsay Davenport, a former coach to Keys, in 2005. Keys' debut in the WTA Finals, starting on Sunday, came courtesy of her winning a second career title in Birmingham, England, and reaching finals at Rome and Montreal.
Petra Kvitova will face Monica Niculescu in the final of the Luxembourg Open on Saturday after the top seed beat Lauren Davis in straight sets. The world number 11 won her only tournament of 2016 in Wuhan three weeks ago and can lift another trophy this weekend if she sees off Niculescu after defeating qualifier Davis 7-5 6-3. Czech Kvitova came from behind in both sets against the American outsider, who faltered when serving for the opening set at 5-4 up and also lost her next service game as the top speed won three games in a row.
Unseeded Argentine Diego Schwartzman upset top-seeded David Goffin 7-5, 2-6, 7-5 to reach the European Open final on Saturday. "It was amazing for me," Schwartzman said after securing his first win 12 matches against a top-20 player. Schwartzman will need to produce another upset in the final against third-seeded Richard Gasquet, who earlier staged an impressive comeback to beat Britain's Kyle Edmund 3-6, 7-5, 6-2.