Police want to speak to a cyclist who may have seen a man assaulted after leaving a pub in Crawley.
The 28-year-old man received serious injuries during the assault in Squirrel Close, Langley Green.
He had been drinking with a group in the Samuel Johnson pub at Langley Parade before the assault, which took place at 11.30pm on Friday.
The victim is from Langley Green.
Detective Constable Phil Bates said: "We are eager to speak to anyone who in the area on that night.
"We most particularly want to make contact with a young man on a bicycle, who spoke to police in Leveret Lane a little while after the incident."
Police are studying CCTV and forensic teams have searched the area.
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