Rivero (hand) has been catching at the Angels' spring complex in Arizona, MLB.com reports.
Rivero was placed on the 10-day IL on June 10 due to a left hamate fracture. He was given an original return timeframe of approximately four weeks, but it appears he'll ultimately need a little more time than that. Rivero could still be activated shortly after the All-Star break, though it's unclear if he'll still have a spot on the big-league roster since the Angels traded for Tyler Heineman following Rivero's injury and have Travis d'Arnaud (foot) potentially returning by the end of this month as well.