Tony Pulis will check on three internationals and one injury ahead of Saturday’s match against Norwich City (kick-off 5.30pm).
Several Boro players were involved for their countries over the past two weeks, and Pulis says his main focus will be on those who played the most minutes.
“Mo Besic, George Saville and Paddy McNair are the outfield players who played both games,” he said.
“We’ll assess them, they worked with the medical people yesterday and they didn’t join in with us.
“We’ll see where they are today.
“It would have been nice to have all the lads together over the break but obviously that’s never going to happen.”
Pulis also picked out one injury which he says may factor into his selection on Saturday.
“Injury-wise, we’re a little bit concerned about Lewis Wing,” he said.
“He’s been carrying a groin injury for the last few weeks. It’s still hanging around so we’ve got to be a bit careful.
“Again, we won’t make a decision on him until later today.