The 21-year-old is believed to have turned down the offer of a new deal at Ninian Park and is ready to make the move to the Britannia Stadium in the new year.
Stoke wanted to sign the highly-rated midfielder in the summer, but a deal couldn’t be agreed and boss Tony Pulis has had to bide his time before making a fresh move for the Bluebirds star.
Cardiff do not want to lose their key man but are aware they can receive a substantial sum for him and would be tempted to cash in if he decides to leave.
Stoke remain in the driving seat to sign him but Everton are also monitoring the situation and could launch a rival bid in the new year, although they will struggle to raise the £7million Stoke are reportedly ready to offer.
Wigan staged an impressive fightback to draw 2-2 with League One leaders Blackburn at Ewood Park.