After a long spell out injured with the injury it took Lonergan over two years to gain back his place. Nash kept his place for the 2005–06 term and kept a club record of over 30 clean sheets. Lonergan himself was injured in training early in 2005, and returned to training in early–September. As a result, Lonergan only returned to action with a loan spell to get himself match fit in late 2005 at Wycombe Wanderers. Lonergan made his Wycombe Wanderers debut on 7 October 2005, where he kept a clean sheet, in a 1–0 win over Grimsby Town and kept another clean sheet on his second appearance on 15 October 2005, in a 0–0 draw against Rushden & Diamonds. However, he returned to his parent club after injuring himself in training once again, due to a screw holding his ligament in place snapping. After returning to his parent club, Lonergan undergone surgery for the second time and was sidelined for eight months.