Football is 11 versus 11. On Saturday, a Dutch team played with 12 and it has caused chaos

“Arsenal fans — or indeed, supporters of [insert team you support here] — may feel aggrieved at recent refereeing decisions, but at least you haven’t had to play against 12 men. That’s unless you’re a supporter of Dutch side Heerenveen, who were on the wrong end of one of football’s most basic rules being flagrantly breached during their top-flight match against Fortuna Sittard at the weekend. Visitors Fortuna made a late double substitution with Heerenveen — now managed by legendary former Dutch striker Robin van Persie — 2-1 up. But only one of the players getting replaced actually left the field. The match resumed, the 12 men of Fortuna won a throw-in and from that, albeit after the error was spotted and rectified, a corner which brought their equaliser, and the match ended as a draw. …”
NY Times/The Athletic