From the sound of his most recent tweet, it doesn't sound like former Seattle Seahawks cornerback Richard Sherman signing with the San Francisco 49ers is imminent. He calls his availability as a free agent an "ongoing process."

Sherman, who has been meeting with the 49ers since Friday night, visited with team officials on Saturday. He had dinner with head coach Kyle Shanahan on Friday night, according to a report from The Athletic.

Sherman took part in a physical at the 49ers' facility on Saturday, according to a report by the Sacramento Bee. The veteran cornerback is coming off of a ruptured Achilles tendon in one leg, which he suffered during a Thursday night game against the Arizona Cardinals in November. Sherman had a bone spur in the other leg.

"Just doing our due diligence," Shanahan told NBC Sports Bay Area. "Nothing to report, yet."

Tom Pelissero of NFL Network reports that Sherman has a visit with the Detroit Lions scheduled for next week and Josina Anderson of ESPN said that the free agent cornerback has also garnered interest from the Tennessee Titans, Oakland Raiders, Houston Texans, Tampa Bay Buccaneers, and Green Bay Packers.

San Francisco is Sherman's first visit and Pelissero reports that meetings with the team will continue through the afternoon.

Sherman was released by the Seahawks with a failed physical designation on Friday after seven seasons in Seattle. He has registered 367 combined tackles, 32 interceptions, 99 passes defensed, a sack, and five forced fumbles over his career.

Sherman was part of five Seahawks playoff teams, appeared in two Super Bowls, and helped Seattle win Super Bowl XLVIII.