The Kansas City Chiefs won't use the franchise tag on left tackle Orlando Brown, according to a source.

Brown and the Chiefs couldn't agree on a long-term contract last offseason, so he played under the franchise tag, earning about $16.6 million. 

The two sides have until March 13 to work out contract terms before Brown can begin negotiating with other teams.

Another report states that the Chiefs are now expected to release defensive end Frank Clark.