Hull have signed free agent Sebastian Larsson following his recent release by Sunderland.
Ojo, who made two appearances for Liverpool last season, has not featured for them in preseason.
Burnley have acquired more back-up for England goalkeeper Tom Heaton by signing Adam Legzdins from Birmingham.
Simon Grayson has warned Lamine Kone and Wahbi Khazri to "do the right things" if they are to earn moves away from relegated Sunderland.
Manchester United defender Cameron Borthwick-Jackson has joined Leeds United on loan.
The first round of the Championship is over. What did we learn from the weekend? Villa need more than John Terry and Nelson Oliveira got angry.