John McCririck believes Frankie Dettori is about to take a chance on Celebrity Big Brother with the jockey's riding career "at a crossroads".
The latest series of the Channel 5 reality show will start this evening and, as ever, the line-up is a closely guarded secret.
It has been rumoured for some time that the Italian could be involved as he is currently serving a six-month riding ban for testing positive for a banned substance at Longchamp back in September.
Racing pundit McCririck, who was a surprise hit in the show back in 2005, told BBC Radio 5 Live: "I think he is (going in), it has been going around the racing circles for some weeks now, and of course it's a critical moment in Frankie Dettori's career.
"He doesn't need the money, but his career is at the crossroads now.
"He has parted from his team Godolphin, of Sheikh Mohammed, for whom he rode many Group One winners, and he's got a six-month ban for a drug offence, not performance enhancing, rumoured to be cocaine, and he can't ride until the middle of May."
McCririck expects Dettori's temperament to be tested by the nature of the show, where he will have no contact with the outside world and have only his housemates for company, 24 hours a day.
"In there, the tensions build up and the problems grow and Frankie is a moody man, he has his ups and downs like all of us, so will he be able to survive three weeks in the house?" he said.
"You can't go laughing and joking and cheering everybody up for three weeks, you can do it for three days, but three weeks is going to be a problem."
17 April 2014Ertijaal bids to enhance reputation
Newmarket will suit Canarias - Leon
George prepares Irish raiding party
Module heading to Punchestown
Doyle seeking Fairyhouse pointers
True class tells at Newmarket
Sandiva strikes for Dettori
Power runs Free at Newmarket
Magnus magic for Hannon
Cantlow on track for Fairyhouse
Kingman well-being delights Gosden
Kiyoshi pleases in Newmarket spin
Judge lays down law in Sefton
Toormore on trial in Craven
16 April 2014Buywise books big-race targets
Walsh to ride out this weekend
Byron all set for Hong Kong mission
Gosden stays in winning Spirit
'Tentative' Cup entry for Zarkandar
Draw joy for Grandeur
Leather in frame for Jockey Club
Tropics warming to Abernant task
All eyes on Strauss at Newmarket
Ridge out to peak at Newmarket
Eduard camp look to the future
Mohammed outlines Educate plans
Dreaper duo on National service
Scott learns Melodic lesson
Bobs Worth unlikely for Punchestown
Williams - Buy needs to Wise up
Fly on track for more records
Arod team take cautious approach
Obliterator ready to roar for Lyons
Night camp favour French Guineas
Free and easy for 'forward' Medinah
Fahey braced for Sand storm
15 April 2014Minstrel a Punchestown possible
Joe considered for Cork encounter
Toormore the star turn in Craven
Inch edges closer to Oaks bid
Appleby backs Ring to fire
Oliver wants more from Set To Go
Double tops for Easterby
Varian - Hill in peak form
Hawk has eyes on Lingfield prize
Doyle in awe of Kingman engine
Art given Victoria target
Ground key to Thakhira Classic aim
Cyclone heading for Punchestown
Hopes still high for Hydrogen
Botti in no rush with Hawill
Soumillon booked for Spanish raider
Obliterator takes Newmarket trial
14 April 2014Taaffe ponders Argocat options
Meain machine set for Punchestown
Competitive field for Nell Gwyn
Curragh workouts delight O'Brien
Inis all the way in Listed heat
Sruthan away to winning start
Burke keen on Rivellino claims
Ground key to Cubanita plans
Derby entry Ectot shows class
Back to sprinting for Astaire
Berkshire team mull options
Millman relishing Carpenter future