Martial was forced off in the 2-2 draw with Arsenal on Wednesday evening with an apparent hamstring problem, although Mourinho described it after the match as a pre-injury.
Smalling played against Unai Emerys side despite suffering a fracture in his foot during the 1-0 win over Young Boys in the Champions League last week.
Jones, meanwhile, also played with an injury in the 2-2 draw with Southampton last weekend.
Its a difficult selection again. Still waiting for conclusions, still waiting for people like Martial, Smalling, Jones, people with these kind of doubts, Mourinho said on Friday.
But there is a good spirit and people are putting themselves on the line like Chris did in the last match and Jones did against Southampton.
Thats important when we have so many matches and problems with some players.
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