Bantams loanee duo Reece Burke and Lee Evans have both seen action for their respective nations in recent days.
City midfielder Evans played the whole ninety minutes on Friday evening as Wales U21s secured a goalless draw away to Denmark in their latest UEFA U21s European Championship qualifier.
Centre half Burke also featured for the full game in England Under 20s' 2-1 win over Turkey on Saturday.
Burke and the rest of his England U20s team-mates will now face Germany on Tuesday in their final game of the Mercedez-Benz Elite Cup.
Fellow City defender Rory McArdle didn't feature this weekend, however, as Northern Ireland confirmed their place as winners of their EURO 2016 qualifying group with a 1-1 draw in Finland on Sunday.