Katie Boulter conceded her Wimbledon “moment” might never come after her grand slam struggles continued with a meek second-round exit at the hands of little-known Argentinian rookie Solana Sierra.
The British number two successfully overturned a 5-2 deficit to take a shaky opening set on a tie-break before succumbing to a shock 6-7 (7) 6-2 6-1 defeat.
