Scotland boss Steve Clarke believes he can find space for Kieran Tierney and Andy Roberston in the same team.
But they both play left-back, which leads fans to believe only one would play in important games. However, Clarke thinks he can fit them both in.
"They've played together before," he explained to reporters ahead of UEFA Nations League matches with Israel and Czech Republic.
"Gordon Strachan used Kieran as a right-back which was one way to fit them in. Kieran can play left centre-back, he can play left of a back three or pushed on as a wing-back.
"He played all those positions for Arsenal towards the end of last season and did very, very well. I think he made a few people in England sit up and take notice of his talent but I don't think that would be a big surprise to anybody who watched Kieran develop over the years at Celtic."