Derry City look set to lose striker Ronan Curtis to Portsmouth in the July transfer window amid interest from League 1 side.
Curtis, who scored a hat-trick against Shelbourne in the EA Sports Cup yesterday, almost joined Swedish side Ostersunds last summer but failed to agree personal terms.
The 22-year-old’s agent revealed interest from Pompey last month but Shiels is hopeful of keeping him for their Europa League qualifying campaign in mid-July.
"It's my club who will make the final decision on that but we hope to have him here for the summer," Shiels told the Derry Journal.
"We want to work on the principle that when we exit from Europe the player can go which is the logical step.
"But I'm really not in a position to say what his position is.
"When you're a forward and you score goals and you're young, you're looking at a lot of value there.
"Whereas if you're a full-back or a centre back, it's a much different level of value. Ronan is a player who has a bright future. The decision is upstairs, it's not with me.
"I know how the game in England works. This club has got the tradition of accommodating players who want to get to the professional game in England and Scotland.
"Derry City have always been supportive of that so we don't see any need to change that. We will just have to rebuild again."