The duo was in action for the Super Eagles as they book their place in the final phase of the world cup qualifiers, after playing a 1-1 draw against Cape Verde on Tuesday.
The Eagles qualified as Group C winner, after picking 13 points from 6 matches.
After the game, Watford took to their social media handle to congratulate both players.
” Nigeria are through to the 2022 World Cup play-offs ”
“Congratulations to @WTroostEkong and to future Hornet @OkoyeMaduka! “Watford wrote on their Twitter handle.
Ekong is expected to return to Watford today and join the team ahead of Weekend’s Premier League game against Manchester United.
Okoye on his part will join the club when his loan deal with Sparta Rotterdam comes to an end.