League One transfers: Every done deal as we assess how Sunderland's rivals are shaping-up

Sunderland and the rest of League One have enjoyed a busy summer in transfer market, with plenty of incoming and outgoing deals completed.
Conor Chaplin has been one of the big League One transfers this summerConor Chaplin has been one of the big League One transfers this summer
Conor Chaplin has been one of the big League One transfers this summer

But how are the Black Cats' rivals shaping up ahead of this evening's transfer deadline? We take a look at every done deal in League One this summer to see who could be challenging Sunderland this season: