Fans were quick to put two and two together.
One user wrote: 'You must be the winner x' while another added: 'I hope it means you win masterchef and not eliminated.'
Another picture from the event on Sinclair’s Instagram page was described by fans as a ‘giveaway’ that he is this year’s winner.
'First ever live t.v. weather cross. At #regionalflavours on our production break... been in front of a camera for a while now, still get so nervous,' Sinclair captioned the picture.
‘This post is a give away than,’ a use commented.
Another added: ‘This post and the one before where he is with Georgia the runner up from last year are certainly suggesting that he won....’
That said, another user pointed out that perhaps Sinclair hasn’t won.
'Matt hasn't won MC ok.' they wrote. 'The final week is recorded LIVE.'