Burnley team-mates Connor Roberts and Wout Weghorst exchanged words on Wednesday night when the Welshman confronted the match-winner to ask why he didn't do that for their shared club side.
Wales, buoyed by Sunday's win over Ukraine that ensured they would be at their first World Cup since 1958, looked like they had snatched a point late on through Rhys Norrington-Davies.
However, Weghorst popped up in the 94th minute with a diving header that ensured the Netherlands took all three points and consigned Wales to their second straight Nations League defeat.