Training camp and the preseason roll on as the Bruins opened their slate with a 3-0 win over the Rangers on Sunday before falling to the Sabres 4-1 on Tuesday. Johnny Beecher has impressed through two games, while Matthew Poitras and Mason Lohrei have had good starts. The lines remain in a blender during practices.Send in your questions, comments or concerns on the Bruins or the rest of the NHL, and we’ll be back to answer them tomorrow (Thursday) at 11 a.m.