Big Brother 2015 - Jack McDermott favourite to win before housemates have even entered the house
A devoted football fan has been tipped to win this year's Big Brother before any of the contestants have set foot in the house.
Jack McDermott, 23, who works in a fast food restaurant and follows Plymouth Argyle, has been installed as 5-1 favourite ahead of tonight's launch of the latest series of the reality show.
He is up against a former X Factor contestant, a rapper and a theatre company owner who are among the 16 housemates who will enter the redesigned house.
A spokesman for bookmakers William Hill said: " Jack is very much your man next door, which we think will appeal to viewers".
Channel 5 revealed the show's cast at the weekend which includes former X Factor contestant, Eileen Daly, 51, from London, and model Aaron Frew, 24, from Northampton.
The other contestants in the new series include twins Amy and Sally Broadbent, both 27, from Manchester and Danny Wisker, 29, a demolition man from Margate who is friends with Ricci from fellow reality series Geordie Shore.
Also in the running are 19-year-old Joel Williams, the youngest councillor in Wales and dubbed a "wannabe prime minister" by the programme-makers, and former professional basketball player from Birmingham Kieran McLeod.
They will be entering an altered building complete with a fish tank and a round sofa said to be inspired by the 1960s style of hit TV show Mad Men.
Presenters Emma Willis and Rylan Clark will return to the reality show, which is now called Big Brother: Timebomb.
It was announced last month that Channel 5 had signed up for another three years of the show, which will keep it on air until 2018.
The station said it would continue to show one series of Big Brother every year along with with two series of the celebrity spin-off version.
The show, originally broadcast in the UK on Channel 4, has been a huge success for Channel 5 and guarantees big audiences as well as a steady stream of controversy.
The main Big Brother series was the most-complained-about show of last year, with Ofcom receiving 3,784 complaints, many centred on the behaviour of its eventual winner Helen Wood, who was accused of bullying other contestants.
The previous series of Celebrity Big Brother was second, with 1,874 people contacting the watchdog.
Big Brother: Timebomb will begin at 9pm on TV3