The Washington Redskins and Chicago Bears have rekindled talks under which the Bears would trade Pro Bowl linebacker Lance Briggs to the Redskins, NFL sources said yesterday. While a deal was not a certainty, one source with knowledge of the situation said there was a "50-50" chance a trade would be completed before Washington makes its first selection in the NFL draft tomorrow. The source, who spoke on condition of anonymity, said it was possible the teams also would swap their first-round draft picks, with the Bears receiving Washington's sixth overall selection in return for Chicago's 31st pick.