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California wide receiver Keenan Allen (21) comes down with a touchdown against Stanford Cardinal's Michael Thomas (3) in the first quarter for the 114th Big Game at Stanford Stadium in Stanford, Calif. on Saturday, November 19, 2011. (Nhat V. Meyer/Mercury News)

SAN FRANCISCO -- Football practice at Cal begins Saturday, and coach Jeff Tedford said that answering big questions at wide receiver and the offensive line will be priorities.

The Bears welcome five freshman receivers, and all will be expected to complement preseason All-America junior Keenan Allen.

The scenario along the offensive line became more jumbled a week and a half ago when returning starter Dominic Galas, projected to move from center to right guard, tore a pectoral muscle and underwent surgery. He will be out about three months.

Tedford said the freshman receiver quintet of Cedric Dozier, Chris Harper, Kenny Lawler, Darius Powe and Bryce Treggs will get significant practice time.

"We're going to have to have at least three of them, if not all of them, play this year," Tedford said Monday. "They're not going to be able to learn the position or gain experience by standing in the back."

The other emphasis will be to sort out the offensive line, which figured to have three returning starters but now is very much in flux.

Tedford identified sophomore Chris Adcock as the leading contender to replace Galas at right guard. Adcock played guard and center in the spring and performed well.

But the equation will be fluid and greatly affected by newcomers.

Freshman tackle Christian Okafor arrived last spring and has a running start, but Salesian-High-Richmond's Freddie Tagaloa, listed on Cal's roster as 6-foot-9, 340 pounds, also could factor in the mix.

"We have to see what Freddie can do, see if we can move people around," Tedford said. "If Freddie is where we need him to be or we feel he could be, that gives us flexibility to have (tackle Jordan) Rigsbee maybe go to guard."

Sophomore Geoffrey Gibson also will compete at guard or tackle, and Tedford is eager to see how freshman center Matt Cochran and freshman tackle Steven Moore fit.

  • Sophomore outside linebacker Cecil Whiteside, kicked off the team on May 24 for violation of unspecified rules, has been reinstated, Tedford told CBSSports.com.

    Whiteside is expected to compete for substantial playing time or a starting job.

  • Allen said he is 100 percent healthy and has been cleared by the medical staff to go full speed at practice.

    He underwent ankle surgery in March for a pickup basketball game injury. Tedford said the approach will be somewhat more cautious than that with the team's most explosive offensive player.

  • There is no news on whether Penn State junior linebacker Khairi Fortt, who visited Cal last weekend, will join the Bears. He is able to transfer to another school and play immediately because of the NCAA's sanctions against the Nittany Lions.

  • There is no strict timetable on the return of cornerback Stefan McClure or offensive lineman Mark Brazinski. Both are coming off ACL knee injuries.