Former world No. 41 eligible to return on April 24, 2018.
The Russian chooses a former ally, and they'll join forces at the Kremlin Cup.
World No. 1 hopes Big Four is remembered for two things.
The Aussie dialed up his shotmaking during a rout of Nikoloz Basilashvili in Beijing.
Caroline Garcia jumps to a career-high ranking after her Wuhan title, and she's not the only one who hit a career best ranking.
The 23-year-old says she is okay, but still in "shock" after experiencing a harrowing incident.
The Dane will make her fifth apparance at the WTA Finals.