The primary half was removed from a basic, with neither aspect having a clear-cut probability of observe.
The closest both aspect got here to breaking the impasse was when Ben Corridor rose highest to satisfy a Cooper nook and noticed his effort strike the highest of the crossbar.
However eight minutes into the second half, the impasse was damaged. A defensive mix-up from the Blues allowed Jenkins to nip in and strike from simply contained in the field, discovering the underside nook with a exact shot which gave keeper David Walsh no probability.
Linfield then levelled as McKee met Ethan McGee’s lengthy throw-in together with his head, discovering a well beyond Daniel Gyollai on the close to submit to search out the equaliser.
Cooper was proven a pink card within the first half of extra-time for kicking out at Russell, leaving his aspect with an enormous ask with 10 males.
It took a second of brilliance from substitute Thorndike to seal Glentoran’s spot within the quarter-final as his long-range strike together with his left foot received it for Declan Devine’s aspect.
Shields and Thomson had been additionally proven pink by referee Tim Marshall late in extra-time.
Former Dundalk participant Shields was dismissed for a cynical foul on Dylan Connolly, while Thomson was proven his marching orders after scary a scuffle with the Blues captain, which continued down the tunnel.
Glentoran will uncover their quarter-final opponents on Saturday night with the draw happening reside on BBC Sportsound after the seven different Irish Cup fixtures.
