Athletics activate Max Muncy after left-hand fracture, option Darell Hernaiz to Triple-A

The Athletics have activated third baseman Max Muncy from the injured list after roughly six weeks out with a fracture in his left hand, according to reports ahead of Oakland’s Monday night game in Las Vegas against Milwaukee. The move brings a long-time middle-of-the-order bat back to a lineup that has had to operate without him during the recovery window.

Muncy’s return was described as coming after a fractured fifth metacarpal. He last played April 25, and the timing of his reinstatement suggests the Athletics felt his hand was ready for regular major-league work rather than continued rehabilitation at a lower level. For Oakland, the immediate question is how his right-handed swing translates back to live pitching following an extended absence and whether he can regain the consistency needed from a core infielder.

To make room on the active roster, the Athletics optioned infielder Darell Hernaiz to Triple-A Las Vegas. Hernaiz, a utility option with infield versatility, had appeared in 47 games before the demotion. In the reporting, his season production at the time of the transaction was listed as a.237 batting average with a.318 on-base percentage, one home run, seven RBI, and three stolen bases in limited opportunities.

Muncy’s major-league output before the injury was also included in the transaction coverage. In 26 games, he was hitting.239 with a.308 on-base percentage, two home runs, seven RBI, and two steals. Those numbers matter because they frame what the Athletics are trying to restore: not only a position player at third base, but also a stabilizing presence whose plate discipline helps lengthen rallies.

The Athletics’ corresponding roster decision also reflects how quickly teams must adapt when an IL stint ends. Reinstating Muncy changes the infield pecking order and affects the manager’s ability to rest regulars, match up defensively, and keep bench roles defined. Optioning Hernaiz allows Oakland to preserve depth in Triple-A while prioritizing a return at a premium corner infield spot.

What happens next will likely hinge on Muncy’s follow-through at the plate and in routine plays. A hand fracture can create hesitation in grip and swing mechanics, and the earliest stretch after reinstatement often reveals whether the player is fully comfortable with timing, contact point, and the force needed to drive the ball. Meanwhile, Hernaiz’s next test will be whether he can convert the demotion into a productive enough stretch at Triple-A to earn another call-up.

For fans tracking the Athletics’ season, the move is mainly about getting back one of their more established infield bats and clarifying roster roles at the same time. With Muncy returning from an injury layoff, Oakland’s near-term lineup construction will be something to watch closely, especially against Milwaukee’s pitching plan as the Athletics settle into the first games with him back on the field.