Grand National favourite Don Poli a 'doubtful' runner

Don Poli, favourite for the Randox Health Grand National with most bookmakers, is a doubtful runner according to Eddie O'Leary.
O'Leary, racing manager for his brother Michael's Gigginstown House Stud, claims British Horseracing Authority Handicapper Phil Smith has been too harsh on the Gordon Elliott-trained eight-year-old.