Ekaterina Alexandrova equalled her career-best winning streak and reached her third WTA 1000 semifinal with a three-set defeat of Jessica Pegula in the Qatar TotalEnergies Open quarterfinals.

Learn from Iga Swiatek, Marta Kostyuk and Ekaterina Alexandrova on how to stay warm during tennis matches without sacrificing performance.

No.15 seed Marta Kostyuk came from a break down in the third set to defeat Elise Mertens in the first round of the Cincinnati Open -- her second win over the Belgian in three meetings. Why not watch ...

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