MLB: The three of them will contest the Mariners’ fifth starter, although there are three prospects as well.

Seattle Mariners He has some insider options for the fifth (final) starting pitching rotation spot, though none with much certainty. Justin Dunn and lefty Justus Sheffield They were well-regarded prospects, but they’ve had ups and downs as major leaguers.

Right-hander Dunn had a 3.75 ERA in 11 starts last season, but neither he nor Sheffield had particularly promising peripherals. The left-hander Nick Margevicius The 40-man roster remains, but he missed most of last season after he was diagnosed with thoracic outlet syndrome:

Each of Dunn, Sheffield or Margevicius could possibly hold a rotation role until one of the Mariners’ best young arms is ready to be called up. Matt Brash was selected to the active roster during the final week of the regular season, but did not see any action in the majors.

Both Brash and his partner, top prospect George Kirby, topped in Double-A in 2021, so it’s possible both right-handers are in line for a bit of Triple-A to start next season. That’s also true of left-hander Brandon Williamson, a well-regarded young arm who has posted monster strikeout numbers in the minors.

Given the volume of close-to-MLB options that already exist in the organization, it can be argued that starting pitching doesn’t have to be a priority for Seattle. However, the AL West is seemingly shaping up to be a competitive race, and the Mariners may not be happy with an escape from Sheffield or Dunn or the immediate success of their best prospects.

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Acquiring another starter could also kick Sheffield and / or Dunn into the bullpen and give the club a bit more depth in the event of injuries that normally plague the league’s pitching staff.

Rafael Martinez

I am fond of the King of Sports, especially the Boston Red Sox in MLB and in general all of Mexican baseball. This profession has given me the opportunity to cover major events such as the Caribbean Series, the LMB All Star, LMP (uninterrupted since 2009), signings of important players. I had the chance to attend the 2013 World Classic in Arizona, USA, albeit as a fan. Apart from this beautiful sport, I love basketball, where I have also narrated games and even an NBA friendly 10 years ago, but I carry baseball in my veins. Graduated in Communication Sciences from the Autonomous University of Sinaloa (UAS) , from which I graduated in 2011. I was born in Mazatlán, Sinaloa and started in the world of sports journalism in 2004 in the newspaper El Sol de Mazatlán, where I was a baseball columnist and reporter at the same time. In January 2009 I came to El Debate as a journalist reporter and it was almost six years (in the first stage), until in November 2014 I emigrated to the radio providing my services in Línea Directa-Grupo RSN. My cycle there ended in July 2019 and within days, El Debate gave me another opportunity to work and opened the doors for me again. That is how I came to Al Bat, where I have been since 2019 as a web journalist.

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MLB: The three of them will contest the Mariners’ fifth starter, although there are three prospects as well.