SANTA CLARA — Defensive lineman Isaac Sopoaga left the 49ers to sign a three-year, $12 million deal Tuesday with the Philadelphia Eagles, a league source confirmed.
Sopoaga was the third 49er to exit Tuesday, following quarterback Alex Smith's official trade to the Kansas City Chiefs and tight end Delanie Walker's four-year deal with the Tennessee Titans.
The 49ers, meanwhile, were preparing to host high-profile free agents in defensive back Charles Woodson and defensive tackle Glenn Dorsey, according to ESPN.
Sopoaga's nine-year tenure with the 49ers equaled punter Andy Lee's as the second-longest behind long snapper Brian Jennings, who just finished his 13th season.
Sopoaga is guaranteed approximately $5 million in his new pact with the Eagles, who earlier this year hired away Tom Gamble from the 49ers to serve as their vice president of player personnel.
Sopoaga flew Tuesday to the Eagles and quickly agreed on a contract, according to his agent, Kenny Zuckerman.
Ricky Jean Francois, Sopoaga's top understudy, is also expected to visit the Eagles and then possibly the Indianapolis Colts.
Walker was a part-time starter since joining the 49ers in 2006 as a third-round draft pick out of Central Missouri.
Known best for his speed, versatility and improved blocking, Walker had a career-high 344 receiving yards last season.
Of his 21 receptions, three were for touchdowns, and he may have had more if not for his drops.
Walker had three receptions for 48 yards in the 49ers' Super Bowl loss, and he had one reception in each of their preceding two playoff games.
The Tennesseean's Jim Wyatt was first to report of Walker's agreement with the Titans.
GOLDSON VISITS BUCS
Safety Dashon Goldson began testing free agency, visiting Tampa Bay on Tuesday.
Goldson, who has spent his first six NFL seasons with the Niners, made it clear he did not want to return to San Francisco on a one-year deal and would head into the offseason open to hearing from all teams as he sought a multiyear contract.
He had 69 tackles, three interceptions and a forced fumble last season for the NFC champions."I'm not expecting anything," he said as he packed his locker two days after the Super Bowl loss. "Somewhere. Anywhere. Hopefully, it will be this team. But I'm open to all 32 teams."
Jim Harbaugh said when the season ended that re-signing Goldson was among his top priorities.
On March 4, Goldson said on his Twitter account, "I'm very thankful I didn't get the franchise tag again but still hopeful this means something long term with the San Francisco 49ers!"
Then Monday, he posted, "Things are jingling in the football world today," with a hashtag of "theracebegins."
Goldson reportedly was being whisked by private jet to meet with the Tampa Bay Buccaneers to begin his free agency.
SMITH OFFICIALLY A CHIEF
At 1:43 p.m. Tuesday, Alex Smith's eight-year journey with the 49ers officially ended via his trade to the Kansas City Chiefs.
Some three minutes later, the 49ers confirmed Monday's news that they've acquired wide receiver Anquan Boldin from the Baltimore Ravens (pending a physical) for an "undisclosed" draft pick believed to be a sixth-round choice.
Tuesday marked the start of the league year, thus allowing for trades as well as movement by free agents.