At 12:50 of the second period in the Sabres/Predators game, Buffalo requested a Coach's Challenge to review whether Nashville's Austin Watson interfered with goaltender Chad Johnson prior to Nick Bonino's goal.

After reviewing all available replays and consulting with the Referee, NHL Hockey Operations staff determined that Austin Watson's contact with Buffalo goaltender Chad Johnson was a result of the actions of the defending players.The decision was made in accordance with Note 2 of Rule 78.7 (ii) which states, in part, that the goal on the ice should have been allowed because "the attacking Player was pushed, shoved or fouled by a defending Player causing the attacking Player to come into contact with the goalkeeper."
Therefore the original call stands - good goal Nashville Predators.
Since the Coach's Challenge did not result in the original call being overturned, the Buffalo Sabres forfeit their time-out.