Reid had been a success with Thailand [GALLO/GETTY]

Reid had asked to remain coach of the Southeast Asian country alongside working as assistant manager at Stoke, but Thailand would not agree to the request, Thailand football chief Worawi Makudi said.

"We have agreed to terminate the contract with Peter Reid as our national team coach," he said on Wednesday.

"He wanted to work in the Premier League at the same time but we told him it could not work that way.

"He could not do both, it's impossible."

Facelift

The former England international player and seasoned manager, who was hired to develop the Thai game and steer the team to the 2014 World Cup, will be sorely missed in Thailand after giving the team a major facelift.

Reid's no-nonsense style and modern coaching methods earned him the respect of Thailand's talented but often undisciplined players, who suffered only two defeats during their 13 competitive games under the Englishman.

Worawi said the ex-Manchester City and Sunderland boss's departure was amicable and Reid was reluctant to leave.

"I'm not disappointed, we have a good relationship," said Worawi.

"He did a good job for us but this is what he wants and he has a good future in the Premier League."

Reid's assistant, Steve Darby, a former national development manager of Australia's soccer federation, will take over as caretaker coach, Worawi added.

Asked if Thailand would be looking to hire another foreign coach, Worawi said: "We will be looking into that in the near future."

Sour taste

Reid's activities while in England and his refusal to comment on his future with Thailand left a sour taste in the mouths of Thai fans and the Kingdom's soccer-obsessed media.

"Even if Reid comes back to coach Thailand, the fans may find it hard to swallow," the mass-circulation Thai Rath newspaper said in a commentary last week.

"Reid working for Stoke without prior warning to the Thai Football Association was a slap in the face for the fans."