Coach's Challenge: BUF @ PIT - 1:24 of the Second Period

At 1:24 of the second period in the Sabres/Penguins game, Buffalo requested a Coach's Challenge to review whether Patric Hornqvist interfered with goaltender Carter Hutton prior to Jake Guentzel's goal.

After reviewing all available replays and consulting with the Referee, the Situation Room confirmed no goaltender interference infractions occurred before the puck crossed the goal line.
Therefore the original call stands - good goal Pittsburgh Penguins.
Since the Coach's Challenge did not result in the original call being overturned, the Buffalo Sabres forfeit their time-out.