Boss Neil Lennon is short on right-back options ahead of Celtic 's clash with Hamilton Accies.
Wantaway star Jeremie Frimpong is abroad negotiating an exit from the club as he prepares to join Bayer Leverkusen.
It means fringe man Anthony Ralston could be drafted into defence for the Accies' Wednesday night visit to Glasgow.
Captain Scott Brown is suspended after being sent off against Livingston last week.
Christopher Jullien is out long-term with a knee injury and James Forrest is working his way back from ankle surgery.
Hamilton boss Brian Rice is hopeful he can welcome back some of his Accies absentees.
Shaun Want (thigh), Will Collar (knee) and Lewis Smith (hamstring) were all sidelined in recent weeks but Rice expects to have at least one of them back on the bench at Parkhead.
David Templeton (groin) is out for the remainder of the season.
Potential Celtic line-up
Provisional squad
Conor Hazard
Scott Bain
Vasilis Barkas
Ross Doohan
Greg Taylor
Diego Laxalt
Stephen Welsh
Kristoffer Ajer
Nir Bitton
Anthony Ralston
Hatem Abd Elhamed
Ismaila Soro
Callum McGregor
Luca Connell
Ewan Henderson
Scott Robertson
Ryan Christie
David Turnbull
Tom Rogic
Mikey Johnston
Mohamed Elyounoussi
Leigh Griffiths
Patryk Klimala
Odsonne Edouard
Albian Ajeti
