Receiver Darrell Jackson, acquired this offseason in a trade with the Seahawks, is doing what the 49ers' athletic trainers tell him. Jackson has not practiced running routes with the 49ers this offseason because he is on the trainers' timetable.

But his absence from drills is not entirely just a precaution. His hyper-extended left big toe (aka turf toe) does not seem to be anywhere near 100 percent.

"I feel it," Jackson said. "I always feel it."

When asked if he expects to be ready for the opening of training camp, Jackson said, "I expect to play now, but I'm following their timetable and doing what's best for me."

The 49ers' first practice of training camp is scheduled for July 29.

Jackson and the 49ers' other new veteran receiver, Ashley Lelie, have not done much this offseason due to injuries. Lelie sustained a quadriceps strain on one of the first routes he ran in the team's first minicamp. He has rarely seen the field since.

Jackson does not seem too concerned with the time he is losing with quarterback Alex Smith.

"His job is to hit the open receiver and my job is to run the route and get open," Jackson said today. "As far as chemistry and having the same timing, that'll come as the year goes on."

As far as building an on-field rapport between QB and WR, Jackson said, "That comes time. You don't get it in one day; you don't get it in one week; you don't get it in a training camp. It comes over time. Some people pick it up early, and some people it takes two or three years to develop chemistry."

Jackson sustained the injury Dec. 10 in a Seahawks game against the Cardinals. He was inactive for the final three regular-season games.

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Coach Mike Nolan likes the idea of 49ers fans showing up in business suits for the team's regular-season opener, a Monday night game Sept. 10 against the Cardinals. The idea was first suggested on this blog by Jared Hall, 23, of Ashland, Ore., who identifies himself as "ninerfan21." It was first intended as a protest aimed at Reebok.

Now, the idea is seen as more of a tribute to Nolan and his ailing father, Dick. The NFL and Reebok on Wednesday granted Nolan permission to wear a suit on the sideline for all eight 49ers home games.

"If they're louder because of it, that would great," Nolan said when asked if he'd like to see fans wearing suits. "Whatever excites the fan, I'm all for. Like I said, my focus is on winning games this fall. Anything that generates enthusiasm and participation in the game and all that, is great. It's part of the fan experience."

Nolan said he wants to wear a suit to show his "respect for the NFL, the 49ers and the coaches who have done it in the past." The movement gained a lot of support, in light of the news that Nolan's father, a head coach for 11 NFL seasons, is battling Alzheimer's disease and prostate cancer.

"It's not directed solely because of my father," Nolan said. "I love my father. My father knows that. I don't need to do something like this to prove it.

* * *

When asked why he's being allowed to wear a suit for just the eight home games and not the entire 16-game regular season, Nolan said, "We'll see. - I don't think you need to do much any more. We'll see."

* * *

There's nothing new to report on trade talks involving Kwame Harris and Justin Smiley. Nolan said the team is not shopping either of those players. "It's our anticipation and hope they that they'll be with us this fall, and hopefully longer," Nolan said.

* * *

Cornerback B.J. Tucker is scheduled to get an MRI examination on a pectoral muscle he hurt Tuesday. The team fears Tucker sustained a tear to the muscle, which would require major surgery. "It doesn't look good, but we'll see," coach Nolan said.

* * *

Tight end Delanie Walker did not participate in practice today for personal reasons. Kwame Harris (back), Donald Strickland (knee), Darrell Jackson (toe), Ashley Lelie (quad), Jonas Jennings (shoulder) and Justin Smiley (shoulder) did not practice due to injuries.

* * *

Receiver Marcus Maxwell continues his impressive play in NFL Europa. He caught a 50-yard game-winning TD pass against first-place Frankfurt that will likely put the Hamburg Sea Devils in World Bowl XV.

The Frankfurt-Cologne game would have to end in a tie AND Hamburg would have to lose this weekend to prevent the Sea Devils from playing in the championship game.

Maxwell ranks first in the league, among qualifying receivers, with 17.0 yards per reception. He is second in the league with seven touchdowns, fifth in receiving yards (459) and eighth in receptions (27).