Celtic defender Efe Ambrose is interesting Crystal Palace.

The Daily Mail says Palace are maintaining an interest in Ambrose.

The 26-year-old was the subject of a failed £3m bid by Olympiacos in January and has one year remaining on contract.

Ambrose, who is 6ft 3ins tall and can also play at right back, is willing to consider a fresh challenge and Celtic would sell for around £3m in the summer.