United are out of the Lincolnshire Senior Cup after a 2-0 semi-final defeat to Grimsby Town on Tuesday night.
The Iron went into the game with an attacking formation starting Andy Barcham, Mike Grella and Bobby Grant in forward roles.
There was also a start for trialist and ex-Grimsby Town player Tom Newey who started on the right side of the two centre halves.
Both teams began the game at a quick pace but most of the possession was held in the midfield with neither side really able to muster up a clear-cut chance.
However, in the 25th minute, Sam Slocombe produced a fantastic double save, firstly tipping Sam Hatton’s free-kick against the bar and then blocking Greg Pearson’s rebound effort.
The ball eventually fell to Anthony Elding but his finish was disallowed for offside.
Scunthorpe looked most dangerous when full-backs Callum Kennedy and Christian Ribeiro linked up with the strikers and bombed forward. The team had the majority of possession but it was the visitors who took the lead.
Possession was given away cheaply in the Scunthorpe midfield and intercepted by Grimsby. The ball was eventually knocked through to Louis Soares, who poked the ball into the bottom left corner of Slocombe’s net.
The second half started in a similar way to the first with the home side again taking charge of proceedings.
Midway through the second half, Duffy dribbled into the area and past a defender, firing a shot into the bottom right hand corner but it was pushed away by away keeper James McKeown.
There were many more half chances for the Iron but their pressure was to be wasted when Mariners substitute Andy Cook hit a cross come-shot to make it 2-0 in the 73rd minute.