The Three Lions host the Tartan Army at Wembley as the Auld Enemy get to face off for the first time in 14 years and Chelsea's Cahill feels Blackburn Rovers strike ace Rhodes is the main man for Gordon Strachan's side.
"He has created a stir," said Cahill. "I have watched a few games he has been involved in.
"He hasn't played in the top flight yet but that doesn't mean he is not capable of doing so.
"He has an exciting career ahead of him. He is going to be a threat and someone we will have to look out for."