O'Brien opens the floodgates
Morton extended their lead at the top of the Scottish First Division as they beat basement club Airdrie 4-0.
The visitors took the lead in the 24th minute when David O'Brien found the bottom corner of the net from the middle of the penalty area after good work from Peter MacDonald in the box.
Allan Moore's men then doubled their lead when Colin McMenamin stroked home from 10 yards out on the brink of half time.
Morton flew out of the blocks in the second half and it wasn't long before they found themselves 3-0 up. Peter MacDonald found the bottom left of the goal from 12 yards out in the 52nd minute.
Kyle Wilkie made it 4-0 eight minutes later when he got on the end of Scott Taggart's pass to fire in from the middle of the area.