A 30-year-old man suffered broken ribs and needed surgery on his ear after an assault near Mak Wines off-licence in Peachcroft Road.
The victim, who could not describe his attacker, was assaulted at about 6.45pm on Sunday.
He was treated at Oxford’s John Radcliffe Hospital.
Anyone with information should call police on 101 or call the Crimestoppers charity anonymously on 0800 555111.
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