The Tottenham Hotspur star was reportedly punched in the face and had jewellery and watches stolen when his house was broken into by armed robbers just after midnight.
"Police were called at approximately 00:35hrs on Wednesday, 13 May, to reports of a robbery at a residential address in Barnet," a police spokesperson said.
"Two males gained entry to the property and stole items of jewellery, including watches, before fleeing.
"One male occupant of the property, aged in his 20s, suffered a minor facial injury after being assaulted. He did not require hospital treatment. No arrests; enquiries into the circumstances continue."
Alli subsequently took to social media to confirm that both he and the other occupants were OK following the ordeal, and thanked his followers for their messages of support.