He said: "I signed at a bad time when Sunderland were struggling.
"It would have been nice to play a few more games because I still believe I'm good enough at that level.
"I thought I did well when I got a chance last season but It wasn't good to see the manager bring in all those defenders over the summer. It just never happened for me there so I was keen to come out on loan.
"It was a case of sitting on the bench there all season or coming here to play at a club that's capable of getting into the Premier League."