<strong>More World Cup coverage:</strong> <strong><a href="https://www.thenational.ae/sport/football/world-cup-2018-day-4-live-updates-serbia-see-off-costa-rica-1-0-1.740914">World Cup 2018: Day 4 live updates - Serbia see off Costa Rica 1-0</a></strong> <strong><a href="https://www.thenational.ae/sport/football/mohamed-salah-and-egypt-train-ahead-of-russia-game-in-pictures-1.741161">Mohamed Salah and Egypt train ahead of Russia game - in pictures</a></strong> <strong><a href="https://www.thenational.ae/sport/football/not-just-world-cup-russia-currently-also-home-to-swamp-football-tournament-1.740931">Not just World Cup, Russia currently also home to Swamp football tournament</a></strong>