St Johnstone boss Tommy Wright does not anticipate Celtic's European travels posing problems for Ronny Deila and the reigning champions' when they visit Perth on Sunday.

The Hoops crashed out of the Europa League without winning a group section game for the first time ever and now face a St Johnstone side which has suffered just one loss in their last 11 matches.

But McDiarmid manager Wright is anticipating changes in the line-up which faced Fenerbahce in Istanbul on Thursday.

The Saints boss said: "Celtic's campaign was over before the 1-1 draw with Fenerbahce so they have had time to get their heads round it.

"I thought they put in a decent performance. No doubt Ronny and his squad will be disappointed to be out of Europe but they are still chasing a Treble in Scotland."

While top-scorer Leigh Griffiths was rested during his side's Turkey trip, Wright fully expects the striker to return to Deila's line-up to face Saints in the lunchtime kick-off.

And he admits it would be no surprise to see impact substitutes Kris Commons, who netted the equaliser against the Turks, and James Forrest featuring from the start.

Wright has challenged his players not to let their standards drop in the countdown to the crucial Festive campaign, with Hearts set to visit Perth hard on the heels of Celtic.

With 35 goals netted already - overtaking their league total for the whole of last season - fourth-placed Saints are on the coat tails of Hearts and Aberdeen.

And Wright stressed they will not be retreating into a defensive shell for the visit of the champions.

"We haven't tried to shut up shop playing against the better teams at home," he said.

"There is still an expectation from our fans to have a go. It might be different going to Celtic Park but at home it is different."

Wright has been boosted by news that experienced defender Steven Anderson has been given the green light to return to the fray after missing last week's win at Ross County with an ankle gash which had required hospital attention.

Anderson saw a specialist earlier in the week and has got a couple of training sessions under his belt to show he is ready for a rapid recall.

Wright said: "That is a plus for us because we knew we would have to make a defensive change from last week because Darnell Fisher can't play against Celtic because of the loan term conditions."