The Spanish head coach was asked about the fact that Ollie Watkins was struggling with an injury.
However, Emery was optimistic, stating his belief that Watkins will play against Bournemouth this weekend.
"Both," Emery said when asked if Watkins missed their midweek European game due to injury or fatigue.
"He had yesterday small pain. Not very strong. We decided as well to rest him."
The Spaniard then added: "We will test him, but hopefully yes.
"He was not available because 50 per cent in training he felt something, we didn't want to take a risk. We also wanted to get minutes with Jhon Duran."