Sanches is expected to return from a hamstring injury in March.
Sanches, who joined Swansea on a season-long loan from Germany's Bayern Munich, suffered the injury against Notts County last month and Swans boss Carlos Carvalhal has alleviated concerns of a long-term absence for the 20-year-old.
"He is progressing," Carvalhal told the club's website. "In the beginning, they said it could be long-term, but I believe he will come back next month.
"That's my feeling. I think he will be back sooner than we expect."