In today's Yankees injury update news, Aaron Boone says Clint Frazier (concussion) is progressing well in his games in Tampa. Tommy Kahnle (shoulder tendinitis) is scheduled to play catch today. Adam Warren (back strain) isn't quite at that point but he is progressing. Brandon Drury (blurred vision) was scheduled to appear in a doubleheader at Triple-A today. Boone says they hasn't decided if Drury could join them in Houston the next couple days, but it's possible. Greg Bird (ankle surgery) hit on the field for the first time today and ran sprints in Tampa. Jacoby Ellsbury (plantar fasciitis) is still slow moving, doing limited baseball activity.