Mankins has skipped the Patriots' voluntary workouts this offseason, and Bauer said "no comment" when asked if the restricted free agent would miss a mandatory minicamp next month if he doesn't have a deal.
Mankins has until June 15 -- the day the minicamp starts -- to sign his one-year, $3.268 million tender offer. Patriots owner Robert Kraft said he hopes Mankins "will be with us for the long term."
Mankins was a first-round draft pick (32nd overall) by New England in 2005. He has started in every game during his NFL career.