Neil Lennon will be cautious of Kilmarnock when Celtic return to Ladbrokes Premiership duty at Parkhead tomorrow.
Killie were knocked out of the William Hill Scottish Cup by Aberdeen on Wednesday night in a dramatic replay in Ayrshire, which ended in a 4-3 win for the Dons.
The following evening Celtic battled to a 1-1 draw with FC Copenhagen in the first leg of their Europa League last-32 tie at the Parken Stadium in Denmark, leaving the Scottish champions favourites to finish the job off next week in Glasgow.
Before that, however, the Hoops will hope to end the weekend with at least their 10-point lead over Rangers at the top of the table intact but Lennon believes Alex Dyer's Killie, who beat the Light Blues 2-1 at Rugby Park recently, will not make it easy.
He said: "It's against difficult opponents who probably had a bitterly disappointing night in midweek but Alex has them playing pretty well.
"They scored goals in midweek and they obviously beat Rangers the week before. They are tough opposition and we will have to be very wary of them.
"We will have to see how our players are and we'll get a good look at them on Saturday."
Scott Brown, who came off in the second half in Denmark with a calf injury, is a doubt for Celtic.