Oldham turned pressure into the opening goal
The hosts stayed compact during a balanced first half and then began to win the second balls closer to Wednesday’s penalty area. Kavanagh converted that improvement in the 66th minute to give Oldham a 1-0 lead.
Wednesday responded by moving more players between the lines. The visitors did not need long to equalise, but Oldham continued to press rather than retreating around their own box.
Keillor-Dunn brought Wednesday level
The cup tie was played on 8 November. Keillor-Dunn scored in the 76th minute against one of his former clubs, cancelling out Kavanagh’s opener and sending an even contest towards extra time.
Neither side found a second goal in normal time. Tiredness created more space after the restart, although both teams still tried to keep enough players behind the ball to avoid one simple counter-attack.
Sutton decided the tie in the 110th minute
Sutton put Oldham 2-1 ahead in the second period of extra time. His finish rewarded the home side for maintaining their attacking intent instead of waiting for a penalty shoot-out.
Wednesday pushed forward in the remaining minutes, yet Oldham protected the area and cleared the final deliveries. The hosts advanced through a disciplined performance and one decisive late contribution.