Ana Ivanovic was unable to overcome dramatic circumstances on Saturday, ousted 4-6 6-4 6-4 by Madison Keys at the Australian Open after her coach collapsed mid-match.
Ivanovic's third-round showdown with last year's semi-finalist and 15th seed Keys was delayed for almost an hour after coach Nigel Sears, who is Andy Murray's father-in-law, collapsed in the stands with the Serb leading 6-4 1-0 at Rod Laver Arena.
Tournament organisers suspended play as Sears received medical treatment in the crowd before he was taken to hospital, where he was reportedly conscious and responsive.
When proceedings resumed, Ivanovic struggled with consistency and failed to convert any of her six break-point opportunities in the ninth game, allowing Keys forced a deciding set.
Ivanovic continued to have chances in the final set but after saving one match point, she was unable to fend off another as Keys triumphed in two hours, 25 minutes.