Scotland assistant manager Peter Houston believes Ian Black can stake a claim for a regular international place after being called into the squad to face Australia.
The Rangers midfielder was drafted in on Sunday night after wide players James Forrest and Graham Dorrans pulled out along with full-back Phil Bardsley and forward Jamie Mackie.
The Dundee United manager said: "It's an opportunity for Ian to stake a claim in the Scotland squad, just like any player at any club."
Black's call-up has proved controversial given that Ibrox team-mate Lee Wallace was left out and manager Craig Levein confirmed his international chances had not been helped by his new status as a Third Division player.
Black's combative approach has not endeared him to many fans but Houston insists the 27-year-old former Inverness and Hearts player, who underwent hernia surgery in the summer, deserves his opportunity for the Easter Road friendly on Wednesday night.
He added: "We know Ian, we know how well he played in the SPL last year in his performances against teams like Rangers and Celtic, and my club as well. He proved he was a very, very good player.
"We are short of a player who can sit there and spray the ball around because of the withdrawals. Ian has proved himself to be able to do that on many occasions.
"No doubt if he is given the opportunity, he will stand up to the challenge ahead. I don't see it as a one-off. He has proved that he can play at this level.
"I think Ian Black was very unfortunate not to make one or two squads last year. That was down to the players who were in the squad, the midfield area was very, very strong.
"Quite a few midfield players are out just now and that's what has given Ian Black the opportunity. We were looking for a more defensive type to sit in front of the back four."