Miami Chicago acquired Pro Bowl defensive end Adewale Ogunleye from Miami on Saturday for receiver Marty Booker and a third-round draft choice in 2005.
The deal was contingent on Ogunleye reaching a contract agreement with the Bears, and he accepted a six-year, $33.4 million deal.
Ogunleye, who led the AFC with 15 sacks last season and made the Pro Bowl for the first time, had been unsigned and at a stalemate in negotiations with Miami since May.
The deal shores up Miami's receiving corps, depleted by injuries, including David Boston's season-ending knee injury. The Bears have been seeking to upgrade their pass rush, and end Alex Brown has been sidelined this summer because of a sprained calf muscle.
Ogunleye's deal includes a $15 million signing bonus -- $10 million initially, and $5 million at the end of the season. His agent said the Dolphins offered only a $1 million signing bonus.
"We're pleased the Bears stepped up," agent Drew Rosenhaus said. "Wale is ecstatic. He's set for life, and he becomes one of the highest-paid defensive linemen in the history of the league."
Booker wasn't in uniform for the Bears' exhibition game Saturday night against San Francisco. He had 100 catches for 1,071 yards in 2001, and 97 for 1,189 yards in 2002, when he made Pro Bowl.
He missed three games with ankle injury last season and was limited to 52 receptions for 715 yards.
Booker was a third-round draft pick in 1999 from Northeast Louisiana. Ogunleye signed with Miami as an undrafted free agent after playing at Indiana.