If you want to remove an ESPN account, you can easily do that in the Settings page of your account.
I’ll show you below how I managed to close my profile using a desktop computer:
1 Go to Espn.go.com
and log in by entering your email address and password on their website.
2 Select Account information in the right top corner
3 Scroll down to the bottom of the account information page
and you will notice a Delete account link at the bottom => This will remove your personal information stored with ESPN, Disney and ABC sites.
4 Last step – Confirm that you want to close your account
You’ll be logged out automatically and your account has been cancelled.
Warning: As you”ll see mentioned in step 4 > It may take up to 14 days to completely remove your account and you will not be able to create a new account using your email address during this time.
*Source (& thanks to): espn.go.com