The Capitals made a series of roster moves Wednesday ahead of their first practice back in the Eastern Time Zone, recalling defenseman Dmitry Orlov and forward Michael Latta from the Hershey Bears. To make space on both the 23-man active roster and under the salary cap for Orlov and Latta, veteran defenseman John Erskine has been placed on long-term injured reserve. Erskine, whose placement on LTIR is retroactive to Oct. 26, sat out the Capitals’ 3-2 loss in Vancouver Monday after looking limited in his stride during the previous three games.The 33-year-old defenseman missed four games from Oct. 12-19 with an upper-body injury, but since returning from that absence it’s looked more as though Erskine is still working to regain strength in his surgically repaired left knee. Erskine was on the ice ahead of practice on Wednesday working out with strength and conditioning coach Mark Nemish. With the Capitals still looking to shore up their overall defensive play, this recall presents an opportunity for Orlov, who was out with pink eye when Erskine was previously out of the lineup. Orlov, in the final year of his entry-level contract, has recorded one goal and five assists in six games with Hershey so far this season. Orlov appeared in five games with the Capitals last year after suffering two concussions during the lockout, but this would be his first chance to make a significant impression on the current coaching staff at the NHL level.