As the NBA season continues, New York Knicks fans miss center Isaiah Hartenstein with every passing day. The now-Oklahoma City Thunder big man has been having a career year after leaving New York in free agency, averaging 11.6 points, 12.8 rebounds, 4.3 assists, and 1.2 blocks in less than 30 minutes per game. In the NBA Cup quarterfinals, the difference in New York’s performance to Oklahoma City’s could only be described as ‘poetic.’

The Knicks suffered a brutal 108-100 loss to the Atlanta Hawks on Wednesday night. In a game that saw New York up by as many as 12 points in the first half, Atlanta took full advantage of the team’s rebounding and defensive disparities. The Hawks grabbed 22 offensive boards, including 11 in the fourth quarter.

The Hawks were picking the Knicks apart late in the game, with Trae Young finding teammates cutting to the basket or off of the pick-and-roll for lobs. New York’s defense and rebounding were all-around poor, with the only true paint presence being Karl-Anthony Towns, who finished with 19 boards.

The Knicks could’ve used Hartenstein as the Thunder took down the Dallas Mavericks in Tuesday night’s quarterfinal game, 118-104. The seven-footer put up 10 points, 13 rebounds, a steal and a block. Four of his rebounds came in the fourth quarter. Hartenstein also had five offensive boards.

Hartenstein was a crucial part of the Knicks’ journey to the second round of the playoffs last season, breaking onto the scene as a defensive anchor. Eventually taking the starting job from an injured Mitchell Robinson, the center embraced the tough, blue-collar New York mentality. He quickly became a fan favorite.

That made it all the more painful when Knicks fans watched him depart to a contending Thunder team. Hartenstein recently opened up about his departure from New York, noting his three-year, $87 million to join a championship contender as the reason why he left. The Knicks offered him less money, which was the deciding factor.

The Knicks could’ve used Hartenstein on Wednesday night and could’ve used him all season up to this point. The Knicks rank in the bottom half of the NBA in defense and haven’t been able to find a reliable backup center with Robinson still out.

Make sure you bookmark Knicks on SI for the latest news, exclusive interviews, film breakdowns and so much more!