Three Tottenham youngsters are set to contest the latter stages of the tournament, every White Hart Lane based player who headed to New Zealand.
Having lost their first match against Uruguay, Serbia have turned things round by winning the other two matches in their group, first against Mali on June 3 and then on Saturday against Mexico, both with 2-0 score lines.
The defender slash midfielder started both matches, getting vital international tournament football ahead of rumours that he will be involved in Tottenham's first team squad next season.
The 19-year-old took in two loan spells in the Championship last season, first with Middlesbrough where he struggled for game time, and then at Charlton, where he suffered an injury that ruled him out for much of the season.
Veljkovic, who has two league appearances at White Hart Lane, is the third Spurs player set to be involved in the knockout stages in New Zealand, with fellow centre back Cameron Carter-Vickers having played a starring role as the US became the first team to qualify last week.
Carter-Vickers has played every minute of USA's group games, though their last match ended in a heavy defeat against Ukraine on Friday. They will face Colombia on Wednesday.
Nigerian forward Musa Yahaya has also made the next round, where the Flying Eagles will face Germany on Thursday.