Stenhousemuir opened their Scottish League One campaign with a 1-0 win against Airdrie courtesy of a late Martin Grehan effort.An uninspiring first half saw little in terms of chances for either side, James Lister's shot just sailing over the crossbar.Lister was involved in the action yet again in two second-half minutes, seeing a header saved before a rasping effort forced Airdrie goalkeeper Jack Hamilton to parry clear.But it was Grehan who snatched a winner for the hosts with just three minutes of normal time remaining, firing low into the net after working himself into space in the penalty area.