The striker endured a mixed afternoon in the win over Dundee on Saturday.
Rangers manager Mark Warburton
The veteran forward is once again leading the line for the Gers this season as they look to challenge for the Scottish Premiership title.
He found himself bagging his first goal of the season on Saturday as he scored in their 2-1 win over Dundee.
Rangers' Kenny Miller
He could have had more though, as he missed a glorious chance to put his side three nil up, with the player himself admitting after the game that he should have done better.
Warburton has moved to defend him though, insisting he has no doubts about the veteran.
“I have no doubts about Kenny Miller,” he told the club’s official website.
“He trains every day with passion and desire, he is fit, looks after himself and is a top role model for any young aspiring footballer. He is first class.”
Rangers' Kenny Miller looks dejected
Despite Warburton’s strong backing for Miller, there is no denying that his side are in desperate need of another striker this summer.
With Martyn Waghorn picking up an injury on the opening day, it has left them with just Miller and youngster Joe Dodoo while he works his way back to full fitness.
That is not an ideal situation for a side eyeing a title challenge and it would not be surprising to see another forward arrive before the end of the transfer window.
Rangers manager Mark Warburton celebrates at the end of the match