The Owls have seen 10 of their players earn international recognition for their recent form, and Gray is pleased that so many members of his squad are set to represent their country over the coming weeks.
“We’ve got 10 players away on international duty which shows we’re doing something right," he said.
“You just keep telling players to keep your head down and keep working hard because you will get your reward."
One of the most notable Wednesday players to receive a call-up is Stevie May, who has been included in the Scotland squad.
May has not been the clinical forward that most Owls fans had hoped he would be when he joined last summer, with his total of nine goals in 38 matches not as impressive as expected.
It was thought that Celtic's Leigh Griffiths could be picked over May for Scotland's upcoming games, but Gordon Strachan has kept faith with the Owls front-man.
It is a selection which obviously pleases Gray, and he believes that the 22-year-old will start finding form at Hillsborough next season.
“Stevie should be sat there with more goals, he’s not the only striker in this division thinking that,” Gray said. “But once he’s had a pre-season for us he’ll be fitter and stronger and the best is yet to come from him. We’re delighted he’s got the call-up."
May will be in the Scotland squad for their games against Northern Ireland and Gibraltar at the end of the month.