<p>HOUSTON, TX - OCTOBER 30: Head coach Jim Caldwell of the Detroit Lions greets Khyri Thornton #99 of the Detroit Lions durng warm ups before the game against the Houston Texans at NRG Stadium on October 30, 2016 in Houston, Texas. (Photo by Thomas B. Shea/Getty Images)</p>
The Detroit Lions have waived defensive tackle Khyri Thornton.
The Lions announced the move Tuesday, which also happened to be Thornton's 28th birthday.
Thornton has played in four games for the Lions this season. He began the 2017 season on a six-game suspension for violating the NFL's substance-abuse policy.
Thornton played in 13 games for the Lions last season.
Detroit hosts Minnesota on Thursday.
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