Former Everton, Newcastle and Rangers striker Duncan Ferguson says refusing to play international football after a fall out with the Scottish FA (SFA) was the "biggest regret in my career".

Ferguson, from Stirling, scored 124 goals in 423 club appearances and picked up seven international caps. However, he quit the national side from 1997 onwards, missing out on the 1998 World Cup in France.

The forward's decision to make himself unavailable was in protest at the SFA's decision to ban him for 12 matches following a headbutt on Raith Rovers defender Jock McStay - an incident which led to him serving 44 days in prison.

Speaking to Tony Bellew in the latest episode of his BBC Sounds podcast, the newly appointed Forest Green Rovers manager blamed his "pig-headedness" for his exile.

"When I came out of prison, the SFA asked me to serve another 12-game ban," Ferguson said.

"I had to then go to the courts, to fight my case and say 'look, this is like double jeopardy, or whatever it's called'...

"I actually won my case... but the SFA wanted me to serve [that] ban, so I got the hump.

"It's the biggest regret in my career, not playing for my country."