Smashing Detected error when creating a nested struct in C

Question

I am trying to make a program which basically only uses structs. It is basically a single soccer match... Below is my code:

#include <stdio.h>

/* Structs Definitions */

typedef struct {
  int day;
  int month;
  int year;
} date;

typedef struct {
  char name[16];
  int goals;
} teams;

typedef struct {
  date date;
  teams teams[2];
} match;

/* Function Definitions */

void startMatch() {
  match match;

  /* Day that the match happened */
  match.date.day = 22;
  match.date.month = 11;
  match.date.year = 2022;

  /* Defining results of the match */
  int pos = 1;
  for (int teams = 2; teams > 0; teams--) {
    printf("Nome do %dº time: ", pos);
    scanf(" %15s", match.teams[pos].name);

    printf("Gols na Partida: ");
    scanf(" %i", &match.teams[pos].goals);

    pos++;
  }
}

int main(void) {
  startMatch();
  return 0;
}

My input when running the code is:

Japan 2 Germany 1

I was expecting no error, and the structure match was suposed to contain the struct date, and the struct with 2 elements so i can compare them later.

stack smashing detected ***: terminated

Please, what am i doing wrong?