Benoit, 27, has recorded no points and two penalty minutes in four NHL games this season. Benoit leads all B-Sens defencemen with 45 points on seven goals and 38 assists in 62 AHL games.
O’Brien, 22, has recorded no points and two penalty minutes in six NHL games this season. He has scored 18 goals while adding 26 assists and 61 penalty minutes in 60 games with the B-Sens.
The B-Sens, in fifth place in the AHL’s East Division with a 34-25-3-4 record and 75 points, next see action tonight when they visit the Adirondack Phantoms at 7 p.m.