Last March, San Francisco 49ers linebacker Chris Borland retired at just 24 years old over concerns about the longterm effects of head trauma.

Just over a year later, another NFL player is walking away from the game as well over concerns for his health.

In a lengthy Instagram post on Monday, Kansas City Chiefs safety Husain Abdullah cited his fifth concussion as the reason why he's retiring at 30 years old after seven years in the league.

Within that post, Abdullah references his fifth concussion. He was concussed during a November 29 Chiefs' game against the Buffalo Bills and wound up missing the final five weeks of Kansas City's 2015 regular season before returning to play their two playoff games.

With increasing concerns over the devastating brain disease chronic traumatic encephalopathy (CTE), we can't blame Husain for his decision. We just hope that the effects from the five concussions don't stop him from leading a productive life moving forward because the man is only 30.

With more research and findings about head trauma, concussions and CTE, it should be intriguing to see if more players, like Borland and Abdullah, walk away from the game.

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(Photo: AP Photo)