Foremost among them was Portsmouth, the promoted south coast side Robertson, 21, starred for on loan in League One last season before being felled by a hamstring injury.
 
Due to undergo a medical yesterday, Robertson, who also has suitors on the Continent, was a cult hero at Fratton Park with his all-action displays and technical touches, scoring once in 23 appearances and playing a significant part in the club’s surge towards promotion.
 
It’s five years since Cardiff - who finished 21st on the ladder last season - we’re in the Premier League, but Turkish coach Erol Bulut has been active in the transfer market in a bid to turn the Welsh club into promotion contenders.
 
Described by Bulut as “an interesting player”, Robertson was entering the final year of his contract at the Eithad, where he featured in a number of senior squads without cracking any senior minutes under Pep Guardiola.
 
He becomes Cardiff’s fifth off-season signing and will be in contention to make his debut when the Bluebirds kick off the new season at home to Sunderland this weekend.
 
The move is also likely to enhance Robertson’s chance of adding to the two Socceroos caps he has so far acquired