Highlights: St Johnstone 0-2 Celtic
Celtic's Odsonne Edouard has been affected by transfer speculation in recent weeks but will hopefully "calm down" after Monday's deadline, says manager Neil Lennon.
The French forward, 22, has been linked with a number of clubs and scored once in the Scottish Premiership since an opening day hat-trick.
Lennon was disappointed with Edouard's display in the 2-0 win at St Johnstone.
"He has about three or four more gears to come," said Lennon.
"He's a brilliant player but we are just not seeing the best of him at the moment.
"I think it's apparent it's [transfer speculation] been affecting him.
"Hopefully he'll calm down once the window shuts and come good for us."
Celtic have 'been waiting for Griffiths' - Lennon
On Sunday, Edouard was replaced by Patryk Klimala just before the hour with the score at 0-0 and the Pole netted deep into stoppage time after fellow substitute Leigh Griffiths put Celtic ahead.
Griffiths' 90th-minute strike came on his first appearance of the campaign after fitness troubles.
"That was Leigh in a nutshell," Lennon said. "I know what I have got with him. I was disappointed with the way he came back [from pre-season] and then he picked up an injury.
"We've been patient with him but he knows what I think of him as a player. We don't take that for granted with him, but that's a great start to his season."
In their next game, Celtic take on Rangers in the first Old Firm derby of the season on 17 October.
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