Monk does not want to lose the 28-year-old and believes that a fit-again Michu will be like a 'new signing' next season.
"He has definitely not been put up for sale by anyone at this club, me, the chairman or anyone," Monk is quoted by Wales Online.
"Our only discussion about Michu is getting him back to fitness and making sure he's on the pitch for Swansea and scoring goals.
"He's a goalscorer, our top scorer two seasons ago, so that's not something you dismiss very lightly. We want him here at the club."
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