PT TODAY: Koch gets first crack to replace Walker

Team-by-team playing time allocation charts can be found in our Teamview pages.

National League | American League
 
Diamondbacks | Taijuan Walker has UCL issue
Arizona Diamondbacks RHP Taijuan Walker (elbow) is dealing with an ulnar collateral ligament injury, according to manager Torey Lovullo. A timeframe for his return was not disclosed.  Source: MLB.com - Jack Magruder
 
BHQ take: The “UCL issue” was of the worst-case variety, and a second diagnosis confirmed that Walker will require Tommy John surgery. This will, of course, end Walker’s 2018 season and eat into 2019, and just as ARI had to do almost exactly a year ago with Shelby Miller (TJS), they will be auditioning replacements. Zach Godley more than answered that...

Almost!

You’re just a few clicks away from accessing this feature and hundreds more throughout the year that have a singular goal in mind: Winning your league. Subscribe to BaseballHQ.com here!

Already a subscriber? Sign in here

More From PT Today

Catchers Raleigh and Bart placed on the IL; Twins option Matt Wallner as Zebby Matthews returns; Astros shift to six-man rotation; and more...
May 15 2026 8:15am
Luis Torrens will be the replacement for Francisco Alvarez, Snelling hits the IL after one start, Fairbanks back in the closer role, and more playing time implications from around both leagues.
May 14 2026 8:16am
With Addison Barger's elbow injury, Yohendrick Piñango will continue to see OF time. Plus the PT effects of Jacob Wilson and José Caballero injuries and Trevor Rogers' return.
May 13 2026 8:27am
Ha-Seong Kim is ready to man SS in Atlanta; Giants continue to churn their roster; Mets call up A.J. Ewing, and more...
May 12 2026 8:54am
Carlos Rodón's Sunday return—with Gerrit Cole likely to follow soon—will lead to some staff decisions. Plus Carpenter to IL for Detroit, a bullpen shakeup in San Francisco, and more.
May 11 2026 8:20am

Tools