By Tom Krasniqi

It's almost time to go shopping.  NFL teams can begin talking to agents for unrestricted free agents at midnight tonight.  The free agent signing period begins on Tuesday at 4pm and the rumors are flying already.

A source tells me the Bucs are definitely showing interest in free agent CB Derek Cox from the Jaguars, who's expected to draw interest from several teams.  The Bucs are expected to show serious interest in a number of cornerbacks as they try and remedy the league's worst pass defense. 

According to Pro Football Talk, the Bucs are interested in pass rusher John Abraham, who visited with the Seahawks on Friday and will also visit the 49ers.  This could be a sign that the Bucs will not re-sign DE Michael Bennett.  Bucs had just 27 sacks in 2012.