By: Aj Mansour | KFAN.com
@AjMansourKFAN

Eden Prairie, MN - An already thinning Minnesota Vikings secondary became even further depleted Wednesday afternoon when head coach Leslie Frazier made official the retirement of former CB Asher Allen. Coach Frazier let it slip when he was addressing those who were absent from today's activities.

"Other than [Jared Allen & Chad Greenway], Asher Allen was one guy that had been with us in the past and he has decided to retire from football," Frazier said matter-of-factly Wednesday.

The news was apparently learned by the team last Thursday, but did not make it's way to the public ear until media access today. According to Frazier, Allen's decision to retire was entirely his own and was not directly related to concussions he had suffered in the past.

"I didn’t see that coming," Frazier said. "He would have been one of the corners fighting for a spot just like the other guys are. His experience would have helped us but he’s made a decision that he thinks is best for he and his family and you have to respect that."

Asher Allen, only 24 years old, was drafted by the Minnesota Vikings in the 3rd round of the 2009 NFL Draft. Entering the final year of his rookie contract this season it is speculated that Allen's abrupt retirement is indeed related to multiple concussions (November 2010 & December 2011) Allen suffered while on the field for the Vikings.

In three injury plagued seasons with the Vikings, Allen appeared in 37 games, starting in 21. He accumulated 102 tackles and picked off 4 passes from opposing quarterbacks.

Aj Mansour covers Minnesota Sports for KFAN.com. Feel free to leave comments and questions regarding this post in the space provided below. For Vikings' updates and breaking Vikings' news, follow Aj on Twitter. @AjMansourKFAN

*Photo - Hannah Foslien/Getty Images