However, Lennon's side were favourites to land Hooper for several months and with the prospect of Champions League football, a move north of the border was an attractive proposition to a player who was with non-league Grays Athletic a little over five years ago.
Hooper was lined up to make his first pre-season appearance of the summer during the Iron's 1-0 friendly win over Sheffield Wednesday at Glanford Park on Saturday.
The SPL club have already signed Joe Ledley, Efrain Juarez, Daryl Murphy, Cha Du-Ri and Charlie Mulgrew.
England goalkeeper David James has delayed a planned trip to Glasgow for possible signing talks in order to deal with a family matter.
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