We check this website, now mlbjerseyshop.com is up and dont blocked for our system and other users of the Internet.
So, answer to question: Is mlbjerseyshop Down Right Now? - NO! mlbjerseyshop is up!
If you have problem with access to site mlbjerseyshop, and domain mlbjerseyshop.com is not avalible.
Clear browser cache and/or try other web browser
(Chrome, Firefox or Safari).