The Norwegian has been under pressure recently.
Celtic manager Ronny Deila has been in the crosshairs recently. Despite being top of the league and in the Scottish Cup semi-final the Celtic boss has found himself criticised by Celtic fans and pundits.
Celtic's poor form in Europe and inability to break clear of Aberdeen in the Scottish Premiership title race.
That has seen the Norwegian linked with a potential summer exit from Celtic, with the likes of Northern Ireland international boss Michael O'Neill and former Bhoys gaffer Neil Lennon mentioned as potential replacements if Deila does head off.
But one Celtic player has come out to publicly back his gaffer.
“We’re all behind the manager and he’s certainly behind the players. You can take that with a pinch of salt - we certainly do as players. We just go about our business and play for the manager.
“I am enjoying playing under the manager who is here now and that’s what I’ll continue to do. If we just concentrate on ourselves and good performances on Saturdays then maybe that talk will go down a little bit.
“I really enjoy working for him, he’s been great since day one. I’ve worked with him for a year and definitely feel I have improved tactically.”
Mackay-Steven was of course signed by Deila, joining from Dundee United last winter.
He himself has struggled for his best performances since arriving at Celtic Park, although has recently found something near his better form.
He will of course back the gaffer, who decided to bring him to the club in the first place and is clearly a big fan of the player.
If Deila can complete a league and cup double it might just keep him in the job, which would clearly please Mackay-Steven.