Diamondbacks 1B Seth Beer to undergo shoulder surgery

Diamondbacks first baseman Seth Beer will undergo left shoulder surgery this week, manager Torey Lovullo informed reporters (including Steve Gilbert of MLB.com). The 25-year-old dislocated his shoulder diving for a ball in a game against the Dodgers last week.

It’s unclear if the procedure will affect Beer’s readiness for Spring Training in 2022, but Lovullo said the recovery process will take “months, not weeks” (via Nick Piecoro of the Arizona Republic). While the D-Backs have long since been playing out the string on this year, it’s discouraging news that one of the club’s more promising young bats might be impacted by health issues heading into next season.

Beer just recently got his first call to the majors, appearing in only four games before his injury. He’s gone 4-9 to start his major league career, including a home run off the Mariners’ Diego Castillo in his first big league at-bat. That came on the heels of a strong season with Triple-A Reno, where the lefty-hitting Beer put up a .287/.398/.511 line in 435 plate appearances.

Prospect evaluators have long questioned Beer’s defensive aptitude at first base, but there’s little debate he’s a promising offensive player. The potential introduction of a designated hitter to the National League in the upcoming offseason’s collective bargaining negotiations would figure to be a boon to his chances of playing regularly in Arizona. Barring changes to the service time structure in the next CBA, Beer will be under team control for at least the next six seasons — future optional assignments could push back that trajectory even more — and won’t reach arbitration eligibility until the 2024-25 offseason.