If signed, Wilkinson would present competition for veteran nose tackle Keith Traylor, who did a good job against the run last season but has durability issues.
As for Anderson, the 6-5, 340-pound guard reportedly agreed to terms on a two-year deal.
He signed a three-year deal worth $5.1 million with Buffalo last offseason, but was released this offseason because he doesn't fit new head coach Dick Jauron's blocking scheme.
The book on Anderson is he's a very good run blocker but isn't terribly athletic and struggles at times in pass protection.
Anderson has started 70 of the 79 games he has played since entering the NFL as an undrafted free agent out of Tennessee State. Anderson played in the XFL in the spring of 2001 and landed a starting job with the Ravens that fall.