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Game Used Baseball & Rosin Bag (Innings 1-9) Package: DL Hall MLB Debut - Shane McClanahan (W, 6.0IP, 4 SO) - August 13, 2022 v BAL | Tampa Bay Rays Auctions
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Cardinals reliever Gallegos gets wiped down by umpire after using rosin bag on his left arm | FOX Sports
The use of rosin bags by pitchers came about, at least in part, to combat skullduggery. - CSMonitor.com
Revolutionizing Rosin | baseball | The Rosin Bag. A baseball staple since forever. This handy resource helps pitchers get a grip...literally and figuratively. Here's Trevor Thompson with... | By Bally Sports Detroit
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Rosin bag study: MLB balls are 20% slipperier than NPB balls | The Asahi Shimbun: Breaking News, Japan News and Analysis
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Game-Used Rosin Bag from Andrew Heaney's American League Record 9 Consecutive Strikeout Game - Kansas City Royals at Texas Rangers - 4/10/2023 | Texas Rangers Auctions
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