Reports suggest all parties were in agreement but a mystery issue with Kiernan’s medical has caused The Blues to pull out of the deal.
Panos Pavlakis, the club’s director, took to Twitter to explain the situation:
Guys, it's football business,agreement was reached with all related parties, medical took place but Club has now withdrawn its interest(1/2)— Panos Pavlakis (@PanosInAsia) June 17, 2015
No details have emerged as to the nature of the medical hiccup but more is sure to be revealed soon. Pavlakis went on to offer a battle cry in a follow up tweet as Birmingham now turn their attention elsewhere:
Rangers have acted swiftly in launching a bid, according to BBC Sport, and the 24-year old will now travel to Ibrox to discuss personal terms. If completed, the signing will be Mark Warbuton’s first as Rangers boss and will represent a real statement of intent as The Gers look towards an Scottish Premiership return.
Warburton is well aware of the Irishman's abilities, having taken him on loan during his time in charge of Brentford, and he will be hoping the Wigan man can replicate his form north of the border.