Grant Hanley has dropped out of the Scotland squad.
The Norwich defender had been recalled after a lengthy injury lay-off but has now pulled out.
Hanley has been a regular inclusion for Steve Clarke when available for Scotland duty - and Clarke last week spoke of his delight at Hanley's return.
However, a Scotland National Team update has confirmed Hanley will now not be involved for the friendly matches against the Netherlands and Northern Ireland.
And it has sparked fears over his fitness for the Euros in Germany this summer.
The defender was not involved with Norwich at the weekend with manager David Wagner revealing the player will undergo a personal training plan after injury.
No replacement has been named for Hanley in the Scotland squad.
READ MORE: Shankland unlikely to start for Scotland against Germany
Speaking on Hanley's return to the squad after the announcement last week, Clarke said: "Grant was one of the ones who came back involved during my time. He'd been away from the international scene for a while and then came back in.
"He's a steady, experienced player. He's good in the squad. He's a player that I call a man. He's a man, and you know what you're going to get from Grant game by game.
"It'll be good to have him back in the squad because he also had a very long-term injury that he has worked so hard to recover from. He's playing pretty regularly back at his club, Norwich, and it will be nice to see him again.
“There’s a lot of centre-halves in there as well. I’m not going to be taking all those centre-backs, so there is a similar situation there. They have to impress, they have to play well at their clubs if given the opportunity to play, and then I’ve got to make the selection.”
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