Gills duo involved for Antigua and Barbuda.
Josh Parker was among the scorers for Antigua and Barbuda on Wednesday night as they completed a 3-2 win over Bermuda in an international friendly.
Former Gills winger Myles Weston and Yeovil player Rhys Browne were also on target for the team ranked 139 in the FIFA World rankings.
Thomas Bramble, a youth player at Priestfield, was also involved as a second half substitute having received a call-up.
Both players could feature on Sunday evening in another friendly against Jamaica, meaning Parker will not be available for Gills game against Bradford at the weekend.
Manager Steve Lovell said: "It's great for Josh that he's been picked to go and play for his country and captain the side.
"Obviously we are going to miss him because he's been a major part of our success this season but hopefully when he comes back he'll be raring to go to try and get back into the team.
"I'm very pleased for him."