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Yuki, who qualified for the Indian Wells Masters and went on to scalp world number 12 Lucas Puille, dispatched Olivo 6-4 6-1 in the opening round of the USD 7,972,535 hard court event.
He next faces Sweden’s Elias Ymer, ranked 133 and coached by Robin Soderling, the two-time French Open finalist.
However, Ramkumar fell in the first round, losing 6-7(4) 4-6 to American Michael Mmoh.