Apprentice loser Adam Hosker is to be questioned by Lancashire police over an alleged bar brawl.
Police are investigating the alleged brawl claims
The 24-year-old is accused of punching Stuart Haworth, 21, after a drink was spilled in a nightclub in Blackburn.
Mr Haworth was out with friends at the Liquid and Envy venue in the town when he allegedly bumped into the ex-BBC One contestant on Friday.
"No arrests have been made but inquiries are under way into the incident," a police spokesman said.
Mr Howarth claims he was punched by Hosker and has given a statement to police, who are investigating the claims.
Both men were then thrown out of the nightclub following the incident in the early hours of Friday morning.
Mr Haworth did not need hospital treatment for his injuries.
The reality TV star was fired on the programme by Sir Alan Sugar in May.