Sopel missed 18 games with a foot injury. He has four goals, five assists and four penalty minutes in 14 games this season. Tverdovsky was out 12 games because of a groin injury. He has two goals, one assist and four penalty minutes in 12 games.
Harrold made his NHL debut and had one assist against San Jose on Nov. 22. He has two assists and eight penalty minutes in 10 games.
Harrold returns to the Monarchs, where he has two goals, 11 assists and 10 penalty minutes in 17 games this season.