Boulter records biggest win of career over world No 2 Rybakina at Queen's

British wildcard Katie Boulter recorded the biggest win of her career with an epic victory against world No 2 Elena Rybakina to reach the HSBC Championships semi-finals at the Queen's Club.

With a 7-5 2-6 7-5 upset of top seeded Rybakina, world No 73 Boulter advanced to the final four and will face Croatia's Donna Vekic in Saturday's semi-finals.