Middlesbrough strikers Cristhian Stuani and Jordan Rhodes are both doubts for Saturday's trip to Everton.
Stuani limped out out last weekend's 2-1 home defeat by Crystal Place with a groin problem, while Rhodes suffered a knock to his knee in training on Thursday and both are being assessed.
Gaston Ramirez came off the bench against Palace after - like Stuani - only arriving back from international duty with Uruguay the previous day, and he will hope for a recall.
Long-term absentees James Husband (dislocated shoulder), Fabio da Silva (knee) and Grant Leadbitter (hernia surgery) are still missing.
Provisional squad: Valdes, Guzan, Chambers, Friend, Barragan, Nsue, Ayala, Gibson, Espinosa, De Roon, Clayton, Ramirez, Forshaw, Downing, Fischer, De Sart, Traore, Negredo, Nugent.