Angelique Kerber, Madison Keys get wins at WTA Finals

Top-seeded Angelique Kerber is the only player in the WTA Finals Red Group to stand at 2-0 in the round-robin stage after a 6-4, 6-2 win over Simona Halep on Tuesday in Singapore. American Madison Keys, who needed to win her match to stay in semifinal contention, prevailed, 6-1, 6-4, and never...