Celtic captain Callum McGregor says he and his teammates should step up and fill Rangers midfielder Ryan Jack's void within the Scotland squad.
After placing his health issues behind him at membership degree, the 30-year-old has picked up one other knock that retains him out of worldwide competition in June.
Uncapped Allan Campbell is available in off the again of terrific kind at Championship membership Luton City.
It is an enormous week for Steve Clarke 's facet as a victory over Ukraine on Wednesday might arrange a World Cup play-off last with Wales subsequent Sunday in a bid to achieve that competitors for the primary time since 1998.
They will want to take action with out Jack, who has been capped 12 occasions for his nation, which McGregor is aware of shall be troublesome.
However the midfielder - who captained Celtic to the Premiership title this season - believes alternative now arises for others within the engine room.
McGregor mentioned: "It is tremendous disappointing. I am positive he shall be. Clearly, us within the squad need him right here as effectively.
"He is a prime participant and he has a great deal of expertise at worldwide degree as effectively.
"He is a giant miss for us and he shall be disillusioned little doubt. Nevertheless it opens up a door of alternative for anyone else. That is what we have now to do as a squad.
"We are going to take care of the accidents and all people must be able to play their half."