The Slovenian enjoyed a stellar month in front of goal, coming off the bench to score three times, in the games against Fulham, West Ham United and Everton.
He's already won the club award, seeing off competition from Senne Lammens and Harry Maguire.
His trio of strikes were all vitally important to Michael Carrick's Reds, starting with the roof-raising effort versus the Cottagers.
Marco Silva's men had pegged us back, from a two-goal lead, only for Sesko to find the top corner in the dying seconds.
He didn't score in the following game, a 2-0 victory over Tottenham Hotspur, but was on the spot to net another vital late goal when we travelled to West Ham United.