There will be no return from injury for star striker Michu against Europa League opponents Napoli following ankle surgery in December.
"It's been difficult," Monk said. "He came back into training, but he is still feeling soreness. We had to pull him out of training and he has to have an injection.
"It's nothing serious, but he needs two days' complete rest and we can build him up. He won't be available, he was eager to get out there but sometimes you can push yourself too much."
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