Freddy Eastwood "grasped his opportunity" to make a point to Wolves boss Mick McCarthy.
The Wolves striker, frozen out a Molineux, scored both Wales goals in Wednesday night's 2-0 friendly win against a limited, if competitive, Luxembourg.
Wales boss John Toshack said of the out-of-favour striker: "Some players don't take the opportunity when it comes along, but Freddy really grasped the chance to show what he can do.
"He is facing stiff competition at Wolves and probably hasn't completed 90 minutes in ages.
"But he's a good finisher and took his two goals very well. I am sure that will have done his confidence the world of good."
Eastwood has not started a game for Wolves since Christmas, and has only recently intimated that he may have to leave the midlands outfit if he does not get more action.
He has at least been seeing some action for Wales and, even though he looked short of match fitness, now has four goals in seven internationals.
Toshack added: "I was pleased with the result and pleased with Eastwood.
"We had a few players like him who were short of match fitness out there, we have had to do that with so many players missing.
"But despite that there were plenty of positives, and he was one of them.
"When he had the chance to pull on the Wales jersey, he gave everything and scored two well-taken goals.
"It will have done him no harm to have played a full match. There is plenty of competition for places up front at Wolves, and this performance will do his confidence a world of good."
Toshack also hailed Wales Under-21s, who produced another fine display to win 2-1 in their UEFA championship qualifier in Bosnia.
Toshack said: "We have one of the best under-21 squads in years and they are making a great effort to qualify for the finals in Sweden next year.
"If they had not been doing so well, and the result so important, a few of their lads would have been here with the seniors.
"Now we have a couple more friendlies before the end of the season and they will certainly be given their chance."
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