Newcastle United boss Eddie Howe will make a late call on Alexander Isak ahead of the clash with West Ham.
The Sweden international charged down a James Ward-Prowse set-piece thunderbolt with his head and was knocked down against Southampton amid the intensity of the League Cup semi-final second leg. Since then Isak and Newcastle have followed protocols and concussion.
Howe said: "Alex made a vital contribution in that moment. "He was able to jump and block the free-kick but took a blow to the side of the head and had very slight signs of concussion.
