Kremer (oblique) was seen playing catch Sunday, Jon Meoli of The Baltimore Sun reports.
It was reported early last week that Kremer was still weeks away from throwing as he has battled the left oblique strain for about a month. A return appears to be on the horizon for the 23-year-old, though he'll first need to progress to throwing off a mound. Kremer was also reassigned to minor-league camp Sunday, per Roch Kubatko of MASN Sports.