Only Poe remains unsigned in K.C.

The Chiefs announced they have signed tackle Donald Stephenson, a third-round pick.

The Chiefs’ lone remaining unsigned draft pick is nose tackle Dontari Poe. He was the No. 11 pick in the draft.

San Diego has signed its entire draft class.

In other AFC West news:

The co-defendant of Rolando McClain in an Alabama assault case has pleaded guilty and has agreed to testify against McClain. The Raiders linebacker is on trial today in his hometown.

Former Miami safety Yeremiah Bell is reportedly considering four teams and the Chiefs are one of them. He visited Kansas City this week and would provide depth for the Chiefs.

Junior Seau’s restaurant near Qualcomm Stadium has shut down. Seau committed suicide on May 2. It was open since 1996.

The Denver Post reports the Broncos are close to deals with their top draft picks, defensive tackle Derek Wolfe and quarterback Brock Osweiler.

Cutting down on turnovers is a key in San Diego.

Kansas City general manager Scott Pioli reiterates his support of quarterback Matt Cassel in a radio interview.

ESPN’s Jeffri Chadiha writes about Kansas City owner Clark Hunt and what Hunt needs to do in his role.