"My contract is up at the end of the season so who knows what's going to happen," Harper told the Sheffield Star. The club has not spoken to me and I have not spoken to the club so I don't know what's going on.
"I will see what offers come in and I will leave it to my agent. I know I am a good player and I believe in my ability. I know there will be someone who will want me so I've got no worries about that.
"Every player wants to play as high as they can. I was in the Premier League for two years at Reading so it would be nice to have another crack at it."
Harper added: "I know I am good enough and I'm on a free transfer as well so no club has got to pay any money for me."