With MLB 15: The Show releasing later this month, it's not altogether surprising that Sony would be focusing squarely on that game.
Sony regularly discontinues online support for legacy games to focus on new ones. But some gamers on Reddit aren't happy about online support coming to a close so soon after launch--in the case of the PS4 edition of MLB 14: The Show, it's just 13 months after release.
The online shutdown news was announced on PlayStation's UK website. GameSpot has followed up with a representative for Sony Computer Entertainment America, asking if the discontinuation also applies to North America.