Source: Haynesworth weighing options

As expected, many teams showed interest in Tennessee Titans defensive tackle Albert Haynesworth when free agency began at midnight Friday.

Haynesworth was unable to reach a deal with the Titans. At least six teams have expressed a willingness to pay $30 million to $40 million in guarantees and an average of $15 million a year for Haynesworth, according to a source.

Haynesworth spent the early hours of Friday morning studying some of the early interest and trying to figure out the best fit.

John Clayton is a senior writer for ESPN.com.