Brett Sullivan is a Common 61 OVR Catcher card for the Rockies, part of the Live set in MLB The Show's Diamond Dynasty. He bats left-handed. He is also eligible at Third Baseman and Left Fielder. The card was added to Diamond Dynasty in April 2026.

Brett Sullivan grades out at 69 Arm Strength, 64 Contact, and 63 Vision.

On the Diamond Dynasty market, Brett Sullivan currently buys for about 23 stubs, with sell orders near 0 stubs. Over the past 7 days the buy price has fallen roughly 24%. Its quick-sell value of 2 stubs sits at or above the sell price, making it quick-sell viable. DiamondOps currently rates the card a buy at this price.

OpScore is DiamondOps' composite rating of a card's in-game performance value. Brett Sullivan earns an OpScore of 57.6 on Legend difficulty, ranking #1637 among all cards and #108 among Catchers.