2021-22 Upper Deck UD Game Jersey Casey Mittelstadt #GJ-CM Sabres | eBay
Sabres top Devils 5-3, break 10-game winless streak on road - The San Diego Union-Tribune
Framed Casey Mittelstadt Buffalo Sabres Autographed Blue Adidas Authentic Jersey with "NHL Debut 3/29/18" Inscription - Autographed NHL Jerseys at Amazon's Sports Collectibles Store
Sabres prospect Casey Mittelstadt leaves World Juniors happy - Buffalo Hockey Beat