Alexander Isak is sidelined with a groin injury and Liverpool have been warned that surgery may be required to ensure the striker's long-term fitness. View 2 Images Alexander Isak might require surgery, claims an injury specialist (Image: Robbie Jay Barratt - AMA/Getty Images)

Liverpool have been cautioned by an injury specialist that Alexander Isak might require surgery to ward off future complications . ‌

Isak is currently sidelined with a groin problem that ruled him out of last weekend's loss to Brentford in the Premier League . ‌

The Reds signed Isak from Newcastle United on deadline day in a £125million deal. Since his arrival, the Sweden international has managed just one goal in eight outings, with his return date still uncertain. ‌

Isak was withdrawn at th

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