Norwich City striker Oli Johnson's Carrow Road switch could spark a cash wrangle between the 22-year-old's former club Stockport and the non league minnows who gave him his first footballing break.

Norwich City striker Oli Johnson's Carrow Road switch could spark a cash wrangle between the 22-year-old's former club Stockport and the non league minnows who gave him his first footballing break.

The highly-rated frontman made an immediate impression in a late second half cameo during Saturday's 3-1 League One win over Exeter after being unveiled 24 hours earlier in a double signing with Millwall defender Zak Whitbread.

Johnson was plying his trade at Northern Eastern Counties League outfit Nostell Miners Welfare 16 months ago before earning a Football League move to Edgeley Park.

Now Nostell boss Alan Colquhoun claims the part-timers are still owed money from his initial Stockport switch and would expect to pocket a sell-on windfall under the terms of his original transfer.

Johnson signed a two and half year deal with the Canaries after Norwich agreed an undisclosed fee with cash-strapped County who entered administration in April 2009 with reported debts of �250,000.

"I found out about seven days ago and he went down to Norwich last week for a medical and then Stockport accepted the offer," said Colquhoun. "Fair play to Oli, he's gone to a club who are getting 25,000 every home game who are second in the league.

"Stockport would have made a lot more money on him if they'd accepted an offer from Peterborough in the summer - apparently they offered about �150,000. But they (Stockport) didn't want to sell him. We should hopefully get something.

"We had a clause where we'd get a percentage of any sell-on fee. But we're still owed money from Stockport. The chairman will discuss it with the PFA and find out. Stockport, as far as I'm aware, still owe us money, but then it all went pear-shaped when they went into administration."

Johnson became the first Nostell player to graduate to the Football League but could complete a meteoric rise if City can clinch promotion to the Championship.

"I'm surprised by how quickly it's happened for Oli. He's done tremendously well," said Colquhoun. "He's done better than anybody ever thought. He has bags of ability. But to go to where he has in the space of under 18 months and to get over 20 appearances for Stockport and be signed by a team looking for promotion to the Championship is amazing. When we signed him, he was still playing Sunday League football, having been at Ossett Town and Ossett Albion, but not broke through into open age football. I just asked him if he fancied coming over to Nostell when he was 18 and played with the reserves and under 19s before progressing into the first-team.

"I still speak to Oli and see him. I won't see him as much now he's moved down to Norwich. He won't be back home as much as he was at Stockport, but we'll still keep in touch."

Canaries' chief Paul Lambert has already predicted a bright future for the raw striker who moved to Carrow Road after just 13 Football League starts.

"He's an unknown quantity for a lot of people," said Lambert. "But he could have a massive career in the game if he keeps on learning and keeps on working hard. He will do fine for us."