First-week callups from the NL West including Kyle Harrison, Jackson Merrill, Gavin Stone and Keaton Winn.

First-week callups from the AL East including Rafaela, Cowser, Wells, Mead and more.

First-week callups from the AL Central including Colt Keith, Brayan Rocchio, Parker Meadows, Austin Martin, and more.

First-week callups from the AL West including Wyatt Langford, Evan Carter, Nolan Schanuel, Mason Miller and more.

First-week callups from the NL Central including Jackson Chourio, Michael Busch, Jared Jones, Victor Scott, and more.

First-week callups from the NL East including Max Meyer, Nasim Nuñez, Trey Lipscomb, and more.

Big Hurt's view of the opening weekend dings: Nick Senzel, Justin Steele, Royce Lewis, and more... Sunday's update includes more info on Steele, plus Kenley Jansen, Sean Murphy, and others.

A half-week down, and the closer carousel is in full swing! Lineups, closers, platoons, strategy: bring your fantasy baseball questions to BaseballHQ co-GM Brent Hershey at noon ET on Monday.

Ben Brown made his MLB debut for the Cubs; will he stick around? Plus, Austin Martin takes Royce Lewis' roster spot in Minnesota.

We have a full day of action on Sunday, so check out which pitchers to start and sit with the daily matchups.

Kevin Ginkel seems likely to take over closing duties in ARI—does he have the skills for it? Plus, Mitch Haniger, Kyle Isbel, Louie Varland, and Jared Triolo.