Newcastle new boy Yoane Wissa is to see a specialist over the knee injury he suffered in Congo DR 's World Cup qualifier defeat by Senegal .
Head coach Eddie Howe has revealed the 29-year-old, a £55 million ($74.4m) summer signing from Brentford , will miss Saturday's Premier League clash with Wolves in which he was expected to make his debut.
He faces a race against time to be fit for Thursday night's Champions League opener against Barcelona .
Asked if Wissa was fit and available for the weekend, Howe said: "Unfortunately not, no, so he won't make this game.
"I saw him for the first time yesterday, he's feeling the effects of the injury he sustained just before he came off, so we're going to have to see how he is."
When probed further as to how long Wissa could be s