(Jay LaPrete/Associated Press) (Jay LaPrete/Associated Press)

The Capitals recalled defenseman Dmitry Orlov from the American Hockey League’s Hershey Bears Monday and he will join the team in Pittsburgh.

Already without Mike Green (groin), John Erskine (left hand/wrist) and Tomas Kundratek (right leg/knee) Washington’s defense suffered another blow Sunday against the Buffalo Sabres. Tom Poti didn’t finish the game after aggravating a back injury in the second period, necessitating Orlov’s recall from Hershey.

Orlov, 21, missed three months this season with a concussion and has only played four AHL games since returning to game action. He has recorded three assists in that span.

Despite missing significant time with the concussion, Orlov remains one of the organization’s top prospects. A second-round draft pick in 2009, Orlov played 60 games for the Capitals during the 2011-12 season, recording three goals and 16 assists as he earned a substantial role under then-coach Dale Hunter.

Orlov is left handed but is comfortable playing on the right side. If Poti is unable to play, it’s possible Orlov will make his season debut with the Capitals Tuesday against the Eastern Conference leading Penguins at Consol Energy Center.