Defender Nathan Smith, of League One club Chesterfield, has been called up by Jamaica for a friendly next month.
The summer signing, who qualifies to play for the Caribbean nation through his grandparents, has been selected in the squad to face Honduras in a friendly on October 11.
"This is a once in a life opportunity and has made my family feel very proud. I am very excited about it," Smith said.
The 24-year-old will miss Chesterfield's Johnstone's Paint Trophy tie at Notts County and the league trip to local rivals Sheffield Wednesday.
However, Blues boss John Sheridan said: "I am delighted that Nathan has been called up. Although that has an impact on our games, I would never stand in the way of anyone getting the chance to play for their country."
Meanwhile, Sheridan admits he expects a fine and a touchline ban from the Football Association after he was sent to the stands during the 3-1 defeat at Charlton on Saturday.