Snooker has grown in popularity across the globe in recent years, particularly in the Far East and Europe.
Now Iran can be added to the list, however unlikely that may seem.
It is a country beset with controversy, over disputed elections, its nuclear programme and the outspoken comments of its president, Mahmoud Ahmadinejad.
But as with any country, the population is made up of ordinary people with the same concerns and interests as the rest of the planet.
And for a large number of Iranians, that includes snooker.
There are approximately 1,000 clubs in Iran and 100 in Tehran alone.
Now their budding snooker stars have a chance to improve significantly after landing a coach with bags of experience at the top level.
David Roe, 45, is a former world no.13 who played on the professional circuit from 1986 until he was relegated at the end of last season.
Still in love with the game, he has left Derby and headed to Tehran to pursue a new challenge.
"I heard through Peter Gilchrist [the Singapore national coach] that Iran was looking for a coach and he put me in touch with Kamran Shala, who works for the snooker federation here," Roe told snookersceneblog.
"After the very long and difficult process of getting a visa, which took two months, I arrived here in early September.
"The standard of the main three man team is very good. Soheil Vahedi is the best player in Iran at the moment but there is a 15 year-old called Hussein Vafaei who is great to watch. He pots balls from anywhere. There's also a 19 year-old, Ehsan Heydarnejad, who is talented.
"The only downside for the players at the moment is that they have very little match experience as there are not many tournaments in Iran right now, just four a year.
"The federation president, Hashern Eskandari, is a friendly, enthusiastic man and I've impressed on him the need for more tournaments. It's the only way these players will make the step up to the next level.
"But the standard is already pretty high. I played a lad of 14 the other day and he had a century. He cues a bit like Ding and is another one to watch."
Vahedi, 22, was a semi-finalist in the 2008 IBSF World Amateur Championship and runner-up in last year's World Under 21 Championship.
Iran is gaining more experience in international events and are now looking at sending their best players to the UK to practise against the best.
There are some women players but Roe is not allowed to coach them.
But television coverage does bring the professional game into Iranian homes and there is one figure who has done more than any other to send interest in snooker rocketing.
"All any of the players talk about is Ronnie O'Sullivan. They love him," Roe said.
"In the hotel where I'm staying there was a pro football team from Addis Ababa and as soon as they heard I was connected with snooker, all they wanted to ask me about was Ronnie.
"I took a two hour plane ride to a snooker club north of Iran and there were posters of Ronnie everywhere. There weren't any of any other player.
"Many of the players don't use the rest. They try to play left-handed because they want to copy Ronnie."
Roe was understandably nervous about such a leap into the unknown but is enjoying life in Iran.
"It's a beautiful country and the people are so friendly," he said.
"Tehran is amazing with mountains everywhere. It will have snow here in a few months and has the fifth highest ski resort in the world.
"People are always asking me about Man United. When I say I'm a Derby County fan they think I'm mad. I have to mention Brian Clough just to make Derby seem interesting."
Derby to Tehran may seem an unlikely step to take but the unifying currency is snooker.
"They love the game here and if I can help them improve it will be rewarding," Roe said.
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Now Iran can be added to the list, however unlikely that may seem.
It is a country beset with controversy, over disputed elections, its nuclear programme and the outspoken comments of its president, Mahmoud Ahmadinejad.
But as with any country, the population is made up of ordinary people with the same concerns and interests as the rest of the planet.
And for a large number of Iranians, that includes snooker.
There are approximately 1,000 clubs in Iran and 100 in Tehran alone.
Now their budding snooker stars have a chance to improve significantly after landing a coach with bags of experience at the top level.
David Roe, 45, is a former world no.13 who played on the professional circuit from 1986 until he was relegated at the end of last season.
Still in love with the game, he has left Derby and headed to Tehran to pursue a new challenge.
"I heard through Peter Gilchrist [the Singapore national coach] that Iran was looking for a coach and he put me in touch with Kamran Shala, who works for the snooker federation here," Roe told snookersceneblog.
"After the very long and difficult process of getting a visa, which took two months, I arrived here in early September.
"The standard of the main three man team is very good. Soheil Vahedi is the best player in Iran at the moment but there is a 15 year-old called Hussein Vafaei who is great to watch. He pots balls from anywhere. There's also a 19 year-old, Ehsan Heydarnejad, who is talented.
"The only downside for the players at the moment is that they have very little match experience as there are not many tournaments in Iran right now, just four a year.
"The federation president, Hashern Eskandari, is a friendly, enthusiastic man and I've impressed on him the need for more tournaments. It's the only way these players will make the step up to the next level.
"But the standard is already pretty high. I played a lad of 14 the other day and he had a century. He cues a bit like Ding and is another one to watch."
Vahedi, 22, was a semi-finalist in the 2008 IBSF World Amateur Championship and runner-up in last year's World Under 21 Championship.
Iran is gaining more experience in international events and are now looking at sending their best players to the UK to practise against the best.
There are some women players but Roe is not allowed to coach them.
But television coverage does bring the professional game into Iranian homes and there is one figure who has done more than any other to send interest in snooker rocketing.
"All any of the players talk about is Ronnie O'Sullivan. They love him," Roe said.
"In the hotel where I'm staying there was a pro football team from Addis Ababa and as soon as they heard I was connected with snooker, all they wanted to ask me about was Ronnie.
"I took a two hour plane ride to a snooker club north of Iran and there were posters of Ronnie everywhere. There weren't any of any other player.
"Many of the players don't use the rest. They try to play left-handed because they want to copy Ronnie."
Roe was understandably nervous about such a leap into the unknown but is enjoying life in Iran.
"It's a beautiful country and the people are so friendly," he said.
"Tehran is amazing with mountains everywhere. It will have snow here in a few months and has the fifth highest ski resort in the world.
"People are always asking me about Man United. When I say I'm a Derby County fan they think I'm mad. I have to mention Brian Clough just to make Derby seem interesting."
Derby to Tehran may seem an unlikely step to take but the unifying currency is snooker.
"They love the game here and if I can help them improve it will be rewarding," Roe said.
More...
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