Vlad looks for his 32nd cap for Romania as they face a top-of-the-table clash against Northern Ireland in Group F (7.45pm).
Romania top the table on 13 points with NI on 12 and crucially Hungary back on eight in third at the half-way stage. The top two teams in all nine groups go through to the finals in France next summer.
Christian is set to win his 53rd cap for Denmark as they chase down leaders Portugal in Group I. They take on Serbia in Copenhagen (7.45pm) having beaten them in Belgrade in November. Portugal top the group by two points, Denmark are second but level on points with Albania.
Elsewhere, Erik Lamela is in the Argentina squad for the Copa America in Chile and they take on Paraquay in their first match in Group B this evening (10.30pm UK). Argentina also face Uruguay and Jamaica in their group - the top two of the three groups go through to the quarter-finals, alongside the two best third-placed teams.
Meanwhile, Nabil Bentaleb is in the Algeria squad for the African Cup of Nations qualifier against the Seychelles (8.30pm) while Hugo Lloris and France travel to Albania for a friendly (5pm).