"It is a big surprise he turned down the European champions to go to Arsenal. It is amazing really," said Jones.
"I've got no idea why he made that decision, I have not spoken to the lad since.
"It is disappointing we will not get him back on loan now. We would much prefer it if he had gone to Manchester United and we had got him back on loan.
"But all we can do is wish him the best at Arsenal and wish him all the best in his future career."