Seth Jacobs early departure a blow for Oklahoma State

Seth Jacobs' unexpected exit further depletes an Oklahoma State defense already losing experienced players. Rob Ferguson/USA TODAY Sports

Oklahoma State will have to replace one of its defensive stars before expected.

Defensive end Emmanuel Ogbah declared his intentions to enter the NFL draft, which was not a great surprise. However, linebacker Seth Jacobs has also announced his Oklahoma State playing career is over because of health concerns, writes Darnell Mayberry of The Oklahoman.

Jacobs, a redshirt junior, announced his decision via a Facebook post.

The California native had become a key part of the Oklahoma State defense during his final two seasons. Jacobs finishes his career with 168 tackles (107 solo) including 15 tackles for loss, four interceptions, two fumbles and one sack. He had 65 tackles including nine for loss, two interceptions and one sack during his final season.

Jacobs' departure takes away experience from a Cowboys defense that is losing Ogbah, Jimmy Bean, Kevin Peterson and several other experienced defenders. The good news for Oklahoma State is the emergence of Devante Averette, who was a contributor in a backup role behind Jacobs this season. Averette had 30 tackles including 3.5 tackles for loss, two interceptions and two sacks.

Oklahoma State will miss the stability Jacobs brought to the table but the Cowboys have recruited well at the linebacker spot, giving them options as they look to replace Jacobs' production.