Rangers manager Ally McCoist hailed youngster Lewis Macleod after he sealed a 1-0 win over Inverness Caledonian Thistle in the League Cup second round.
Macleod struck a late deflected winner, his fifth goal of the season.
It gave the Ibrox club a first win over Premiership opposition in two years.
"Lewis is terrific," said McCoist. "We asked him to contribute more goals and assists and that little bit more of a killer instinct. He's certainly given us that.
The result sets up a third round clash against fellow Championship side Falkirk on Sep 23 after a seventh win in a row.
McCoist is eager to protect 20-year-old Macleod - who missed the second half of last term with a viral problem affecting the muscles round his heart - from being overhyped.
"How far can he go? He's a good young player and that's probably all I'd say at the moment," he said.
"In history Rangers have had great young players coming through and I hope he goes on and does as well as some of them.
"It's just great to have him back. I'm not putting any pressure on him after the time he has had, but it's just great to see him back and entertaining our fans.
"They are clearly taking him to their hearts and rightly so."
The Rangers manager also defended his club's support, with many electing to stay away from Ibrox with just 15,208 at the game following reports fans are unhappy at the board.
He said: "I want the stadium full, of course I do. I am the manager of the team and the fuller the stadium the better.
"But I can understand what's going on.
"I'm doing my level best not to get involved in it. I can't have a bearing, but what I can have a bearing on is picking teams and getting results like we did tonight."