Celtic goalkeeper Craig Gordon has told STV that he thinks Roy Keane could be suitable for the soon-to-be vacant manager's position at Celtic Park.
The Bhoys announced last month that manager Ronny Deila will be leaving the club at the end of the season, after something of an underwhelming campaign.
The Norwegian has won the league title again, but disappointing displays in Europe and a Scottish Cup semi-final defeat to Old Firm rivals Rangers have led to Deila's contract not being renewed.
Now, fans are wondering who could come in as the club's new manager this summer, with a host of former Celtic players linked with the job, like Alan Stubbs, David Moyes, Neil Lennon and Paul Lambert all being mentioned for the job.
However, the favourite right now is former Celtic midfielder Roy Keane, who hasn't managed a club since leaving Ipswich Town back in 2011.
Keane, who is currently assisting Martin O'Neill with the Republic of Ireland national team, finished his playing career with Celtic, and is being heavily linked with the Celtic job.
Now, Bhoys goalkeeper Craig Gordon - who worked with Keane during their time together at Sunderland - has told STV that he thinks Keane would be successful at Celtic, and admitted he was 'hard but fair' having worked with him already.
"Why not?" said Gordon when asked whether Keane was Celtic material. "I don't want to single anybody out and talk about any one candidate. That's for once the games are finished with but certainly I've had him as a manager before.
"I know how he liked things to run at Sunderland and if he was appointed then I'm sure he would do well and would be successful."
"He's hard but fair. What you see is really what you get. With Roy Keane, he was an aggressive player who wanted to win every match and from what I've seen he's exactly the same as a manager," he added.
Would you like to see Celtic appoint Keane?