Scotland have drafted Manchester United youngster Tyler Fletcher into their World Cup squad as a replacement for the injured Billy Gilmour.
Fletcher -- the 19-year-old son of former Scotland captain and Man United midfielder Darren -- was handed his international debut after coming on at half-time in Saturday's 4-1 friendly win over Curacao.
The teenage midfielder has now been added to Scotland's 26-strong World Cup squad after Napoli playmaker Gilmour suffered a knee injury during the first half against Curacao, which has ruled him out of the tournament that starts next month in North America.
Fletcher was one of five young players given the chance to join Scotland for training over the past week and made a big impression on boss Steve Clarke.
Clarke said on Saturday when assessing his options: "Obviously I've got Connor Barron, Andy Irving, Lennon Miller, and you see for yourself how good young Tyler is.
"The three that I mentioned are on standby. Obviously Tyler joined us this week. He's trained well this week so he's a little bit closer than the other three."
Before flying out from Glasgow airport to Scotland's Florida training camp on Sunday afternoon, Clarke said: "Everybody is devastated for Billy.
"It is heartbreaking when it happens at any time during the campaign but for it to happen in the send-off game is particularly tough.
"For myself, it was a really difficult night, I haven't slept much, I have to be honest.
"I had to disappoint another three players this morning again, to tell them that they had missed out.
"I just felt Tyler came into the squad this week and showed up really well, did well in the game so that was the thinking behind that one.
"Obviously devastated for Billy and also really disappointed for Lennon, Andy Irving and Connor Barron."
John McGinn revealed Gilmour's bad luck had left a "bittersweet" taste.
The midfielder said: "We are excited. Obviously our first thoughts this morning are with Billy.
"He is a huge part of the group, a big part of the country moving forward.
"We are devastated for him, the same way we would be for any of us who missed out so late. So we are thinking of him.
"It's a little bit of a bittersweet taste in our mouth but we have to now focus, enjoy it and do ourselves proud."
The Aston Villa captain said he believes the Scotland squad has another top recruit in Fletcher.
He said: "I was very impressed, obviously it is in very difficult circumstances for him but it just shows you that football changes very quickly.
"I played with his dad Darren, so it is an amazing day for his family and he has shown that he is capable of competing with us.
"So he is not just here to make up the numbers, he is here to impress and hopefully help us, not only now but in the next 10/15 years."
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Scotland's first World Cup match will be against Haiti on June 14, as they head to the tournament for the first time since 1998.
Scotland will also face Brazil and Morocco during the group stage.
