Goodnight everyone, thanks for the company yet again
A live segment will be broadcast at the end of tonightâs highlights episode, in which Sam and Sophie decide whether Callum, Dan or Jack and Joe will join them in the safe house and become the third nominee.
However, unlike previous Monday live segments â which saw directors cross straight to the house â tonightâs will be fronted by Rylan, who will also appear on BOTS afterwards with AJ Odudu.
Tweeting about the news, Rylan said: âPresenting part 4 of the @bbuk main show tonight! Bit nerve! Then @bbbots straight after with @AJOdudu.
âItâs @Emma_Willis day off, hope sheâs sunbathing on my behalf.â
It is the first time in Big Brother UKâs history that the main show will be anchored by a personality other than its official presenter.
During its Channel 4 years, Davina McCall was almost always on hand for such instances â with bosses opting to cancel a live special during the 2010 series rather than proceed without her when it emerged she wouldnât be able to make it to the studio on time.
However, Willis stood in for McCall for one episode of spin-off Big Brotherâs Big Mouth during the seventh Celebrity run in 2010, when she had entered the house as part of a task.
Big Brotherâs Little Brother star Dermot OâLeary was also kept on emergency standby for the 2001, 2003 and 2006 public series as a result of McCallâs pregnancies.
Tonightâs Big Brother airs at 10.00pm on Channel 5.