Sean Johnson - Chicago Fire website photo

The chance of Sean Johnson playing against Jamaica in tomorrow's crucial World Cup Qualifier at the National Stadium is probably the same as a snowstorm blasting Half-Way Tree. Next to zero.

Yet it's equally unlikely any other member of the United States' senior national men's football squad will be more eager to visit 'The Office' than their 23-year-old reserve goalkeeper.

Johnson cannot escape his deep Jamaican connection. He has "family all over" the island, where both parents - father Everet from St James and mother Joy of Manchester - were born. They now live in the US, where Johnson was born in the state of Georgia.

"I think it's exciting, having my cultural roots there," said Johnson on Tuesday from the US training camp in Florida, two days before the team was due to depart for Jamaica. "... It's special for me."

However, he erases any potential conflict of allegiance, his full focus being on helping the US win the first of two Group A CONCACAF semi-final matches over four days against the Reggae Boyz.

"There's no mixed emotions," Johnson explained. "I'm happy playing for the US We're going down there to do a job."

Johnson is also sure his parents will have no split loyalties for the game tomorrow either.

"They root for me," he said. "They support me as their child."

By his own admission, Johnson was raised in a Jamaican household. He enjoys reggae music and lists dishes such as oxtail among his favourite. His father's best friend, who he claims as "pretty much my second family", is from Kingston. Johnson used to visit Jamaica regularly, staying mostly in Montego Bay.

"Up to high school, I went two or three times a year, usually during summer and Christmas holidays," he said.

He'll arrive in Jamaica as part of a group bound tightly by the Stars and Stripes of the US flag, a symbol Johnson holds dear. But that doesn't mean he'll abandon the Jamaican roots from which he sprung.