Jannik Sinner has jumped nine spots to a career-high No 15 after capturing the Citi Open in Washington, but the Italian teenager says there is “still much work to do”.
Sinner soars to career-high but ‘still much work to do’
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Jannik Sinner has jumped nine spots to a career-high No 15 after capturing the Citi Open in Washington, but the Italian teenager says there is “still much work to do”.