It comes after Llorente suffered a dead leg during the Swans’ disappointing 2-1 loss to relegation rivals Hull City on Saturday.
The Spanish forward left the pitch shortly before half-time at the KCOM Stadium after a clash with Tigers’ centre-back Harry Maguire.
New signing Jordan Ayew replaced Llorente, but couldn’t make an impact in a frustrating afternoon in Hull.
Meanwhile, Angel Rangel is undergoing scans on his foot after he was also forced off the field by injury against Marco Silva’s side. Although, Kyle Naughton is set to return from a hamstring strain this week, so he’s likely to return at right-back at the Vitality Stadium regardless of Rangel’s setback.
Martin Olsson also suffered an ankle injury, however had to remain on the pitch as Paul Clement had already made his three substitutes at that point. The extent of the Swede’s injury is unknown yet and he will be assessed on Monday.