On Non-League Day, the United man shares how important the stint at Edgeley Park in 2016 was for his education and why it is a path other keepers have travelled in order to make it to the top.
Playing in the National League North was the start of his senior career and part of a structured plan to enable him to accelerate his learning of the trade.
"I think when Jordan Pickford was going out, at the start he went to Carlisle and it was an eye-opener for me," Henderson tells club media. "He was getting involved in the England squad and had the move to Everton.