Four Big Brother housemates face the public vote this week after being nominated for eviction.
Mikey, Nikki, Imogen and Lisa (clockwise from top) face eviction
Upholsterer Lisa Huo, 27, is favourite to go, with odds of 1/7 at bookmaker William Hill.
Imogen Thomas, 23, is second at 7/1 while IT designer Mikey Dalton, 22, is an outsider with odds of 16/1.
Model Nikki Grahame, 24, faces eviction for the third week in a row, after she was publicly nominated by Lisa and Welsh lifeguard Glyn Wise, 18.
Nikki was put forward for the public vote on Monday, after five of the 10 housemates were punished for discussing nominations.
They were forced to choose one of the rule-breakers for nomination in front of the other housemates.
Nikki received two nominations. Bookmakers put her odds of departure at 10/1.
The remaining nominations were made in private.
Lisa received three nominations, with fellow-housemate Aisleyne Horgan-Wallace branding her a "proper rude girl". Imogen and Mikey both received two nominations.
One of the four nominees will be thrown out of the house on Friday, to be determined by public vote.
The contestant will become the eighth person to leave the reality show, following the eviction of Grace Adams-Short last week.
Two housemates have left the house of their own accord, and one contestant was expelled for breaking rules.