Posted by ESPN.com's Kevin Seifert
Let's catch up on some Black and Blue-related free-agent visits:
Free agent defensive tackle Grady Jackson is scheduled to arrive in Detroit on Tuesday, according to NFL.com. General manager Martin Mayhew has said he wants the Lions' interior defense to get bigger, and they don't get much bigger than the 350-ish pound Jackson. He played last season in Atlanta but is no stranger to the NFC North following a three-year stint in Green Bay from 2003-05.
In Green Bay, the Packers are hosting free agent safety Mike Adams. Read about the visit in the Milwaukee Journal Sentinel, Green Bay Press-Gazette and Wisconsin State Journal. The truncated version: Adams, who turns 29 later this month, has started 23 games during a five-year career with San Francisco and Cleveland. He intercepted two passes last season for the Browns.
Detroit was scheduled to host offensive lineman Daniel Loper on a visit starting Tuesday night, according to the Detroit Free Press. Loper spent the past four seasons in Tennessee while new Lions coach Jim Schwartz was an assistant there. Loper, 27, has never started a game.
Baltimore is hosting center Matt Birk, according to the Star Tribune. Birk has been with Minnesota since 1998, but could replace departed free agent Jason Brown if he signs with the Ravens.
Another one of the Vikings' free agents, linebacker Heath Farwell, is scheduled to visit New England.