Andy Murray was knocked out of the Qatar Open by 18-year-old Jakub Mensik after being edged out 7-6 (8-6) 6-7 (3-7) 7-6 (7-4) in a remarkable second-round match in Doha.
Down a double-break at 5-2 in the third set, Murray twice broke Mensik when the Czech was serving for the match, but the teenager composed himself to emerge victorious in the deciding tie-break.