Roberto Martinez looks set to ask Swansea for permission to speak to Celtic over their managerial vacancy after apparently expressing interest in the post.

Swansea turned down an initial request from Celtic but chairman Huw Jenkins admitted he would not stand in Martinez's way if the Spaniard insisted on talks.

The 35-year-old appears destined to do so when he returns from holiday on Wednesday, and told the Scottish Daily Express: "Managing Celtic is one of the top jobs in European football. Any young, aspiring manager with ambition would be interested in a job like that."

He added: "It gives you the chance of being involved in Champions League football and the opportunity to win silverware every season in Scotland.

"Anyone would be interested in a job like this. However, everything would have to be sorted with Swansea first.

"I have an agreement in place with the Swansea chairman as to what would happen and I'd want that to be honoured."

Martinez has four years left on his contract and City may demand £2million compensation for a manager who led them to the Coca-Cola League One title in his first full season and eighth place in the Championship this season.

Celtic have refused to comment on the approach but other names are still in the frame to replace Gordon Strachan.

West Brom have repeatedly stated there has been no official approach for Tony Mowbray while Motherwell manager Mark McGhee and Dundee United boss Craig Levein have consistently been linked with the post.

Owen Coyle was thought to be Celtic's first choice and, although he pledged his commitment to Burnley before going on holiday at the weekend, he is yet to sign an extended contract at Turf Moor.