The 29-year-old missed Belgium’s 9-0 drubbing of Gibraltar on Thursday night, during which Romelu Lukaku scored a hat-trick, with a ‘minor injury’.
He hasn’t started a game for Man United this season but impressed with his cameo against Real Madrid and scored United’s second against Leicester City.
And Martinez has confirmed that the injury which prevented him from featuring against the minnows earlier this week was nothing serious.
“I was talking about Marouane this morning,” he said.
“He is sharp, fit and eager. That’s a boost with a view to Greece.”
Mourinho will most likely continue to use the indomitable midfield pivot of Paul Pogba and Nemanja Matic for the trip to Stoke City next Saturday, perhaps using Ander Herrera as well to add more legs, but you sense that Fellaini will have a part to play late on.
He has come on as a substitute in every one of United’s games so far this season and has, in one way or another, made a difference (in United’s last three games, they have scored seven goals after Fellaini’s introduction, once again showing that, yes, he is the greatest player of all time).
The midfielder’s boisterous, physically imposing presence is proving to be quite an asset against tiring opponents in the Premier League so far.