7 Marlins advance to WBC quarterfinals, Adam Mazur's surgery & more

Enjoy new episodes of our Miami Marlins livestreams throughout 2026 spring training. Every week, Fish On First staffers answer your questions and provide in-depth analysis of the team leading up to Opening Day.  

Thursday's show was co-hosted by Jeremiah Geiger and Ely Sussman. The following topics were covered:

• Adam Mazur's season-ending elbow surgery
• Updated look at the Marlins starting rotation depth chart
• Notable performances by Marlins players in World Baseball Classic pool play
• Bold predictions submitted by the FOF audience

You can find Fish Unfiltered and Fish On First LIVE on the Fish On First YouTube channel, Apple Podcasts, Spotify or wherever else you get your pods.

The WBC resumes on Friday. Expect Owen Caissie and Otto Lopez to both be in Canada's starting lineup for their quarterfinals matchup against Team USA (first pitch at 8:00 p.m. ET).

Sandy Alcantara started for the Dominican Republic in their victory over Venezuela on Wednesday. If they advance deep enough into the tournament, he is interested in making another appearance.

Check the replies to this FOF tweet to see all of the fan-submitted Marlins bold predictions that we received.