"Liverpool is a special club and it does not deserve to be treated badly," he told The Times. "The people who were there at the time - the manager and Christian Purslow - have now gone but they know the truth.
"When I went back to Liverpool for pre-season I had a lot of meetings with them and they were promising a lot of thing to me but never kept their word."
"Why would I do that and risk getting injured when I knew that Barcelona were close to signing me and then refuse to play in another game? That doesn't make any sense.
"We had been talking about completing the transfer for 20 days because the club also wanted to make it happen, but then they started to make things difficult for me."