The QPR winger was originally recalled by Scotland manager Gordon Strachan for the games against the USA at Hampden on Friday night and Norway in Molde on Tuesday
Matt Phillips has been ruled out of Scotland's friendlies against the USA and Norway due to a hamstring injury.
The QPR winger was recalled by Scotland manager Gordon Strachan for the games against the USA at Hampden on Friday night and Norway in Molde next Tuesday.
But Strachan has revealed that the former Blackpool man is the latest wide player to be ruled out after James Forrest and Chris Burke also picked up injuries.
"Matt Phillips has gone back to QPR, which is unfortunate," Strachan said.
"He's had strange injuries in the last year, but I've seen him recently and he's so determined.
"I was hoping to get him in and try him. He felt a bit of tightness but it's grown into a hamstring strain."
Strachan also lost striker Jordan Rhodes to injury, but Steven Fletcher is back in the squad and the former Middlesbrough boss is delighted to have the Sunderland striker available for selection.
He added: "He looks happy [to be back]. We were unfortunate when one of our best players get injured after just two minutes of a qualifying game. He adds class and has shown that at any teams he's played with."
The USA have qualified for next year's World Cup and Strachan is looking forward to the challenge posed by Jurgen Klinsmann's side.
He said: "They are 13th in world now. We wanted to put on a friendly that is attractive to the fans and players of both sides.
"We are feeling good about ourselves and I'm sure they are."