Chris O'Connell has had to retire with injury during a late-evening battle at the Italian Open to put the tin hat on a miserable day for the Australian challenge at the Foro Italico.
O'Connell had been locked in a dogged clay-court battle with Roberto Carballes Baena, having taken 80 minutes to wrap up the first set on a tiebreak, but he struggled in the second and pulled out when 6-7 (7-9) 5-0 down.
