Defenseman John Marino has been placed on injured reserve.
Trotman, 29, played in five games with Pittsburgh this season from November 21-December 4, recording a plus-1.
At the AHL level in 2019-20, the 6-foot-3, 217-pound Trotman has notched three goals, eight assists and 11 points in 23 games. Trotman's three goals ranks tied for second among WBS defensemen and his 11 points are the fourth most among WBS defensemen.
A Carmel, Indiana native, Trotman has seen action in 88 NHL games spanning six seasons with both Boston and Pittsburgh, totaling 13 points (3G-10A) and a career plus-3.
Pittsburgh finishes off a home-and-home series with Toronto, tomorrow, Thursday, February 20 with a 7:00 PM puck drop at Scotiabank Arena. The Penguins are looking for points in a sixth-straight game (4-0-1).