{"id":482721,"date":"2026-02-21T22:26:08","date_gmt":"2026-02-21T22:26:08","guid":{"rendered":"https:\/\/www.newsbeep.com\/us\/482721\/"},"modified":"2026-02-21T22:26:08","modified_gmt":"2026-02-21T22:26:08","slug":"mastrobuoni-hits-seattle-mariners-1st-grand-slam-of-spring","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us\/482721\/","title":{"rendered":"Mastrobuoni hits Seattle Mariners&#8217; 1st grand slam of spring"},"content":{"rendered":"<p>The Seattle Mariners\u2019 first grand slam of spring training came from an unlikely source.<\/p>\n<p><a href=\"https:\/\/sports.mynorthwest.com\/mlb\/seattle-mariners\/seattle-mariners-prospect-arroyo-stole-show-cactus-league-opener\/1839870\" rel=\"nofollow noopener\" target=\"_blank\">Notebook: M\u2019s prospect \u2018stole the show\u2019 in Cactus League opener<\/a><\/p>\n<p>In the first inning of Seattle\u2019s second Cactus League game on Saturday, utilityman Miles Mastrobuoni turned on a first-pitch fastball from San Francisco Giants right-hander Hayden Birdsong and <a href=\"https:\/\/x.com\/Mariners\/status\/2025308232307409381\" rel=\"nofollow\">pulled it over the right-center-field fence<\/a> at Peoria Stadium for a grand slam.<\/p>\n<p>The moment gave legendary Mariners play-by-play voice Rick Rizzs \u2013 who is <a href=\"https:\/\/sports.mynorthwest.com\/mlb\/seattle-mariners\/rick-rizzs-last-season-seattle-mariners-voice-2026\/1837127\" rel=\"nofollow noopener\" target=\"_blank\">retiring at the end of this season after 41 years in the booth<\/a> \u2013 an opportunity to break out the famous line: \u201cGrandma, get out the rye bread and mustard! It is grand salami time!\u201d<\/p>\n<\/p>\n<p>Mastrobuoni also doubled in Seattle\u2019s 7-4 win over the San Diego Padres in Friday\u2019s Cactus League opener.<\/p>\n<p>Mastrobuoni appeared in 76 games for the Mariners last season, slashing .250\/.324\/.296 with one homer and four doubles. He offered late-inning versatility off the bench and played every position except catcher, shortstop and center field \u2013 even making a pitching appearance in a blowout loss.<\/p>\n<p>The 30-year-old Mastrobuoni likely faces an uphill climb to make the Mariners\u2019 opening day roster, with Seattle set to have possibly its deepest and most versatile lineup in decades. But early on, his spring is off to a good start.<\/p>\n<p>More on the Seattle Mariners<\/p>\n<p>\u2022\u00a0<a href=\"https:\/\/sports.mynorthwest.com\/mlb\/seattle-mariners\/seattle-mariners-mitch-garver-reunion-came-together\/1839813\" rel=\"nofollow noopener\" target=\"_blank\">How Seattle Mariners\u2019 reunion with Mitch Garver came together<\/a><br \/>\u2022\u00a0<a href=\"https:\/\/sports.mynorthwest.com\/mlb\/seattle-mariners\/seattle-mariners-different-first-impression-spring-training\/1839769\" rel=\"nofollow noopener\" target=\"_blank\">Drayer: Mariners give a different first impression this spring<\/a><br \/>\u2022\u00a0<a href=\"https:\/\/sports.mynorthwest.com\/mlb\/seattle-mariners\/salk-seattle-mariners-more-than-draft-develop-trade\/1839673\" rel=\"nofollow noopener\" target=\"_blank\">Salk: Mariners doing one more thing besides \u2018draft, develop and trade\u2019<\/a><br \/>\u2022\u00a0<a href=\"https:\/\/sports.mynorthwest.com\/wyman-and-bob\/seattle-mariners-offense-less-power-2026\/1839732\" rel=\"nofollow noopener\" target=\"_blank\">Why Mariners\u2019 offense can withstand having less power in \u201926<\/a><br \/>\u2022\u00a0<a href=\"https:\/\/sports.mynorthwest.com\/mlb\/seattle-mariners\/seattle-mariners-josh-naylor-dog-tucker-re-signing\/1839524\" rel=\"nofollow noopener\" target=\"_blank\">Mariners\u2019 Josh Naylor wasn\u2019t joking about dog\u2019s role in him re-signing<\/a><\/p>\n<p><a class=\"twitter-follow-button\" href=\"https:\/\/twitter.com\/CameronVanTil\" data-show-count=\"false\" target=\"_blank\" rel=\"noopener nofollow\">Follow @CameronVanTil<\/a><\/p>\n<p><a href=\"https:\/\/sports.mynorthwest.com\/newsletters\" rel=\"nofollow noopener\" target=\"_blank\"><img decoding=\"async\" data-perfmatters-preload=\"\" src=\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2025\/07\/1752802210_317_SeattleSportsEmail-830x100-1.jpg\" style=\"margin: 0 auto;\" class=\"mobile-signup\"\/>\t&#13;<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2025\/07\/1752802210_317_SeattleSportsEmail-830x100-1.jpg\" style=\"margin: 0 auto;\" class=\"desktop-signup\"\/><\/a><\/p>\n<p>                    <script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n","protected":false},"excerpt":{"rendered":"The Seattle Mariners\u2019 first grand slam of spring training came from an unlikely source. Notebook: M\u2019s prospect \u2018stole&hellip;\n","protected":false},"author":2,"featured_media":482722,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[65],"tags":[363,99],"class_list":["post-482721","post","type-post","status-publish","format-standard","has-post-thumbnail","category-mlb","tag-mlb","tag-sports"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/482721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/comments?post=482721"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/482721\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media\/482722"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media?parent=482721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/categories?post=482721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/tags?post=482721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}