Function to sort the names of basketball players

I need to write a program that will recieve (from the user) the number of players in a basketball team and then I need to create an array in a dynamic way. The program will sort the array in an alphabetic order and then print it like that aswell. I wrote this code:

#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>
#include <string.h>

#define LENGTH 20

int main(void)
{
    int numplayers, i, j;
    char persname[LENGTH], tname[LENGTH], temp[LENGTH];

    printf("Please insert the amount of basketball players in the group\n");
    scanf("%d", &numplayers);

    char **players = (char **) malloc(numplayers * sizeof(char *));

    printf("Please insert the names of your %d basketball players\n", numplayers);
    for (i = 0; i < numplayers; i++) {
        gets(persname);
        strcpy(persname[i], tname[i]);
    }

    for (i = 0; i < numplayers-1; i++) {
        for (j = i+1; j < numplayers; j++) {
            if (strcmp(persname[i], persname[j])) {
                strcpy(temp[i], persname[i]);
                strcpy(persname[i], persname[j]);
                strcpy(persname[j], temp);
            }
        }
    }

    for (i = 0; i < numplayers; i++) {
        printf("%s\t\t%s\n", tname[i], persname[i]);
    }

    return 0;
}

But when I run the code, I get an error right after typing the amount of players in the team, Unhandled exception at 0x507340E3 (msvcr120d.dll) in Question4.exe: 0xC0000005: Access violation reading location 0xFFFFFFCC. What did I do wrong.