Arizona wide receiver Anquan Boldin, the 2003 NFL offensive rookie of the year and the Cardinals' only Pro Bowl player, injured his right knee yesterday morning while loosening up for practice and was carted off the field.

Boldin experienced soreness in the same knee Monday and sat out a morning practice but participated in an afternoon walk-through.

Boldin had X-rays and an MRI exam but results will not be available until today because orthopedist Russell Chick, who administered the tests, also operated on running back Marcel Shipp's broken left leg yesterday.

"His knee locked up on him, and so we're running some extensive tests," Coach Dennis Green said. "It's not locked up now."

Last season, Boldin set an NFL rookie record with 101 receptions, had the most receiving yards (1,377) by a rookie since Houston's Bill Groman in 1960 and established a franchise rookie record with eight receiving touchdowns.

Boldin had reconstructive surgery on his left knee as a junior at Florida State.

* GIANTS: Co-owner Robert Tisch has had an inoperable brain tumor diagnosed.

Coach Tom Coughlin informed the team of Tisch's illness after the morning practice, the team said.

Tisch bought half of the team in 1991 from co-owner Wellington Mara's nephew, Tim Mara. The 78-year-old is the chairman of Loews Corp.

* BUCCANEERS: Tim Brown signed, a move that reunites the former Oakland wide receiver with ex-Raiders coach Jon Gruden and General Manager Bruce Allen.

The 38-year-old, nine-time Pro Bowler will be counted on to bolster a wide receiving corps that is in desperate need of experienced help because of injuries and Keenan McCardell's holdout.

Brown was released last week after 16 seasons with the Raiders, who told one of the most popular players in team history that he was no better than the fourth or fifth best wide receiver in a group that included starters Jerry Rice and Jerry Porter.

With Tampa Bay, Brown could wind up being a starter with McCardell demanding a raise after a Pro Bowl season and Joe Jurevicius out indefinitely after undergoing back surgery this month.

The Bucs also think rookie wide receiver Michael Clayton, the team's first-round draft pick, can benefit from being around and learning from the 17th-year pro.

Brown played a franchise-record 240 games for Oakland, and his streak of 173 consecutive games with at least one reception is the second-longest in NFL history behind Rice's 273.

The 1987 Heisman Trophy winner played for Gruden from 1998 to 2001, the last four years in a stretch of nine consecutive seasons with at least 1,000 receiving yards.

Meantime, linebacker Derrick Brooks sprained a knee in practice, but the injury is not considered serious.

"We got a scare," Gruden said, "but fortunately he's okay."

His status for practice is listed as day-to-day.

* DOLPHINS: Wide receiver Antonio Freeman (Virginia Tech) worked out a day after David Boston had season-ending knee surgery.

A former Pro Bowler and once Brett Favre's number one target in Green Bay, Freeman caught just 14 passes for 141 yards in 15 games with the Packers last season.

He could help the Dolphins, who have little experience opposite Chris Chambers at wide receiver.

* BENGALS: Running back Chris Perry, the team's first-round draft pick, ended an 11-day holdout by agreeing to a five-year, $7 million deal, according to the team's Web site.