Ross D. Franklin, Associated Press
Arizona Cardinals' Larry Fitzgerald (11) beats teammate Kerry Rhodes (25) as he catches a pass during NFL football training camp on Saturday, July 30, 2011, in Flagstaff, Ariz.

FLAGSTAFF, Ariz. — The Arizona Cardinals went through their first practice of training camp with quarterback Kevin Kolb watching and first-round draft pick Patrick Peterson nowhere in sight.

Kolb won't be eligible to practice until Thursday, but Peterson is scheduled to be practicing by Sunday after agreeing Saturday to a four-year, $18.5 million contract with a fifth year at the team's option. The cornerback from LSU was the fifth player taken overall in the draft and a major reason the Cardinals were willing to part with Dominique Rodgers-Cromartie as part of the trade to bring Kolb from the Philadelphia Eagles.

Earlier Saturday, Arizona further addressed the cornerback position by signing free agent Richard Marshall to a one-year deal. Marshall started all 32 games for Carolina the past two seasons.

The Cardinals sought to fill another need by signing free agent guard Floyd Womack, an 11-year NFL veteran who played in 16 games for Cleveland last season. Arizona lost starting right guard Deuce Lutui, who signed with Cincinnati.

Free agents signed from other teams can't practice until Thursday. Neither can Kolb, because he signed a new contract — $63 million for five years with $21 million guaranteed — as part of the trade.

"I feel like we've got half a team out here," star wide receiver Larry Fitzgerald said, "but it was good to be back out on the field, great to be back here in Flagstaff and out in front of our fans. I know they've been waiting for football, we've been waiting for football and it's just a joyous day for us all."

Peterson was en route to Arizona from Florida, ready to take his spot at one cornerback spot. Marshall could fill the other, although he will face competition from Greg Toler.

Womack is the second new guard on the line. Daryn Colledge, a starter on the Green Bay Packers' Super Bowl championship team, signed a free-agent deal with Arizona, taking the spot left open by the retirement of Alan Faneca.

Colledge said he will be using the time between now and when he is allowed to practice to study the Cardinals' offense.

"I've got a lot of work," he said. "I've got a system that I've got to dump that I've been for the last five years and I've got a brand new system I've got to learn in five days. So it's going to be tough. We've got a new quarterback back there, we've got some moving parts on the offensive line and we've got a lot of guys relying on a bunch of us to get some stuff done. So we're taking it pretty serious."

The team kept some continuity on the interior line by re-signing center Lyle Sendlein.

Coach Ken Whisenhunt knows that the group he worked out Saturday isn't close to being the one he will have by the end of next week.

"I liked the intensity, I liked the effort," he said, "but you could tell it was the first practice ever for this group."