Scotland manager Alex McLeish has challenged his new call-ups to prove themselves at international level and help work towards Euro 2020 qualification.

McLeish named his squad for the upcoming friendlies against Costa Rica and Hungary, calling up nine uncapped players and six who haven't been in the senior squad before.

The manager acknowledged he had made changes for the first matches of his second spell in charge and said players had to seize the opportunity by bringing club form into the international set-up.

"It is a fresh start," he said. "I know there's a couple of experienced players not in the squad but I know what they can do and I wanted to look at some other players.

"It's a couple of friendly games. It doesn't mean we'll play friendly but I certainly want to look at players who have been doing well for their clubs.

"It's a great opportunity. They've been doing well for their clubs and that's why you get picked for your country, ultimately.

"We just want to see them come in and, if they're capped for the first time, then it's a great honour but we want to see them playing the way they do for their clubs and challenge themselves to become even better.

"The ultimate goal is obviously qualification."

McLeish said he hadn't yet settled on a captain for his side and revealed that he had delayed announcing his squad until after the weekend's Premiership fixtures to help him make some decisions. One beneficiary was Hibernian's Dylan McGeouch, who is among the fresh additions to the squad.

The manager said he had wanted to see the midfielder in the flesh before settling on a call-up.

McLeish also revealed with three outstanding left-backs to choose from in Kieran Tierney, Andrew Robertson and Barry Douglas in his squad, he wouldn't press the Celtic star into service at right back unless absolutely necessary. However, he said that Tierney may end up playing in central defence.

He also addressed questions about the goalscoring potential of the team, saying he expected contributions from throughout the side.