Middlesbrough only look set for one deadline day player exit. Deadline day can be hit and miss for Middlesbrough, and this latest deadline day has certainly been mixed so far. There’s no new signings to speak of as of yet, with Tom Cannon one player linked. Right now though, it’s reported that Stoke City are set to sign Cannon on loan from Leicester City. Elsewhere, Josh Coburn is set to join Millwall on loan, in what feels like a good move for Boro’s Championship rivals. And reporter Craig Johnson believes that Coburn will be the only player leaving the Riverside on deadline day. READ MORE: M…