Throughout Sunday and Monday there was a flurry of roster activity as teams made trades and placed players on waivers prior to the holiday roster freeze that went into effect at midnight and lasts until 12:01 AM December 28th. During this period teams are prevented from trading, waiving, or loaning players to the minor leagues. They can, however, make moves to comply with the salary cap if players are coming off of LTIR.
In the past, the Tampa Bay Lightning have used this period to make some paper transactions, sending players to the AHL to help out with the salary cap.