RYAN CHRISTIE and Diego Laxalt will both be walking disciplinary tightropes as Celtic attempt to salvage their Europa League dream against Sparta Prague tonight. 

Scotland hero Christie picked up his second caution of the group phase during the Hoops’ chastening 4-1 defeat against the Czech giants earlier this month. 

He was also booked in their opening fixture against Milan after entering the fray as a half-time substitute. 

Meanwhile, Laxalt - on loan from Milan - was shown a yellow card in each of the Bhoys' first two Group H matches against his parent club and Lille.

Should either player pick up a third booking in Prague they will be suspended for the glamour trip to face Milan on December 3. 

The loss of Christie or Laxalt would be a hammer-blow for embattled Celtic boss Neil Lennon, with the duo proving to be among the few bright spots in recent weeks.