Published: 2020-05-14 04:49:25 BdST
Alli, 24, and his adopted brother Harry Hickford were reportedly hurt in the incident after two men wielding knives broke into the player's home in Barnet and threatened them.
"Two males gained entry to the property and stole items of jewellery, including watches, before fleeing," the Mirror quoted the Metropolitan Police as saying.
"Two male occupants at the property suffered minor facial injuries after being assaulted. They did not require hospital treatment. No arrests; enquiries into the circumstances continue."
Alli and Hickford's girlfriends as well as a friend were also in the house when the incident occurred, the reports said, adding that the occupants were playing cards when the robbers broke in.
Alli is due to return to training with Spurs next week ahead of a possible resumption of Premier League matches in June following the coronavirus pandemic.