Harrop's future was unclear as he wasn't the first name ont he team sheet and with a year remaining on his contract he may have looked elsewhere for first team football.
He has been unlucky with injuries but last season had an extended run in the side where he scored some superb goals. It seemed that he was dropped a lot quicker than other players after one bad performance.
The issue for Harrop was that Johnson also had a very good season meaning Harrop wasn't played in his preferred position. This season could eb abig one for the forward as he is a player who can open up defences as well as score goals.