Scotland boss Alex McLeish says Manchester United midfielder Darren Fletcher has "an aura" about him.
"It's fantastic news for us," he told Sky Sports. "We will have to wait and see whether we start him or not.
"He has a big chance of playing, particularly with the injuries that we have and the people who may need to be rested.
"To be fair, the squad already has that aura because of the results and performances that they have already so I take my hat off to them.
"They have been fantastic."