Gold Coast SUNS midfielder David Swallow has suffered an injury setback.

Swallow underwent arthroscopic surgery in Melbourne on Tuesday after suffering discomfort in his knee.

General Manager – Football Operations, Marcus Ashcroft, confirmed Swallow wouldn’t return as early as was expected.

"David had an arthroscopy after experiencing some discomfort in his left knee.

“The arthroscope revealed that David’s recovery hadn’t progressed as well as had hoped and as a result his return to football will be delayed,” Ashcroft said.

Ashcroft outlined an expected return date was unknown at this stage but should become clearer in the next few days.

“Our medical team will review the information and consult further. We will have a clearer picture regarding ongoing management later in the week.”