2:18pm: This move is now official, with Tatis being diagnosed with a hamstring strain of as-yet-unannounced severity. Righty Phil Maton is heading onto the active roster for the time being.
12:46pm: The Padres expect to place phenom Fernando Tatis Jr. on the 10-day injured list, according to MLB.com’s AJ Cassavell (via Twitter). He’s dealing with a hamstring issue, the full severity of which isn’t yet known.
The San Diego organization is obviously interesting in keeping Tatis in the lineup as much as possible, having opened him on the MLB roster rather than keeping him down for a few weeks to keep him shy of a full year of service. But that same consideration also counsels in favor of caution. Rather than risk a more significant hammy issue, the club will evidently put Tatis on ice for a bit.
It doesn’t seem as if there’s much concern that Tatis has suffered a serious injury, though he’s still awaiting a full examination. The plans in his absence will likely involve Manny Machado sliding to short and Ty France getting some extra time at the hot corner.
San Diego already needed to clear an active roster spot to add Cal Quantrill for a start on Wednesday. It’ll still need to open 40-man space for him, perhaps by shifting another player to the 60-day IL.