The Chicago Bears are looking for the black-belt treatment.
The team announced Tuesday it has hired martial arts expert Joe Kim to help develop hand technique and skill development.
Kim will work with all of the Bears position groups to help improve players' ability to block or escape blocks.
The Bears will become the ninth NFL organization Kim has worked for since Bill Belichick's Cleveland Browns brought him in for the 1992 season. Kim most recently worked with the Kansas City Chiefs from 2010 to 2012, according to the official website of Kims Martial Arts School in Avon, Ohio.
In addition to Cleveland and Kansas City, Kim has worked with the Dallas Cowboys (1998), Miami Dolphins (2001-'06), Green Bay Packers (2005), Denver Broncos (2007), Buffalo Bills (2009) and New York Giants (2010).
In each stop on Kim's tour, he has been labeled a "pass rush specialist." The Bears' 31 sacks in 2013 tied for fewest in the NFL.