Rosehill, 27, has spent the season with Anaheim’s American Hockey League affiliate, the Norfolk Admirals. In 33 games this season, he has four goals and four assists for eight points, along with 90 penalty minutes.
Before signing with Anaheim prior to this season, Rosehill spent the past 3-1/2 seasons with the Toronto Maple Leafs organization. He has appeared in 72 career NHL games, all with Toronto, contributing two goals and three assists while recording 198 PIM.
Rosehill has appeared in 360 American Hockey League games over parts of eight seasons, during which time he has 23 goals and 31 assists for 54 points along with 1,018 PIM. He reached the Calder Cup Finals with the Toronto Marlies in 2012.
Zolnierczyk, 25, signed with the Flyers as a free agent on March 8, 2011. He appeared in 52 AHL games with Adirondack this season, notching nine goals and eight assists for 17 points, and also recorded one assist in seven NHL games with Philadelphia.
In 107 games with the Phantoms, the second-year pro registered 20 goals and 23 assists for 43 points and 128 PIM. He has three goals and four assists in 44 career NHL matches.