Simona Halep and Petra Kvitova both won their first round matches at the Dubai Championships on Tuesday. Elina Svitolina made a strong start to her bid for a third straight title. Kvitova, the 2013 winner, recovered from losing a first-set tiebreak to defeat Katerina Siniakova 6-7 (3/7), 6-4, 6-4 and squeeze into the third round. Halep, ...