Mariners' Gregory Santos: Continues ramping up activity level

Santos (lat) has continued throwing bullpens in recent days and is playing catch out to 105 feet between those sessions, MLB.com reports.

Santos appears well on track to facing live hitters soon, given his cumulative level of activity recently. The right-hander remains without a timetable for return and could require a full-length rehab assignment whenever he's deemed ready to take that step since he's been sidelined since spring training.