A man was knocked unconscious and suffered a fractured jaw and three broken teeth when he was attacked in Leagrave.
The 32-year-old victim was walking along Tenby Drive on Sunday (November 18) between 3pm and 4pm when two men knocked him to the ground.
When he came to he realised his laptop had been stolen.
His attackers are both described as white, aged 19 or 20. One was about 5ft 6ins tall, slim, wore a black hoodie and had blonde hair with a fringe.
The other was 6ft tall, wore a blue hoodie and had ‘noticeable’ gold rings and a bracelet.
Anyone with information about the incident should call Det Sgt Hancock on 01582 474387 or text information to 07786 200011.