ST. LOUIS — Camp Fisher officially opens Sunday with the St. Louis Rams having their first full-squad practice under new coach Jeff Fisher.

The Rams practice at 3:30 p.m. Sunday at Rams Park. The practice is open to the public.

"I'm very excited," Fisher said Friday after the Rams' final practice of a four-day rookie acclamation program. "Everybody's excited. Vets are inside watching practice through the window and coming in early and lifting and doing that kind of stuff. So everybody's excited to get going."

Veterans reported for a mandatory team meeting at 9 a.m. Saturday, but they had to wait to get on the practice field. They spent most of the day in meeting rooms.

"We have a mandatory team meeting at 9 (a.m.) and then we'll wrap up with our conditioning tests," Fisher said. "Then we're not permitted to come on the field and have walk-throughs tomorrow, so most of tomorrow will be inside."

Under the new Collective Bargaining Agreement, the Rams must wait until Wednesday to have their first practice in full pads.

"We can't put pads on until the fourth day," Fisher said. "It's a mandatory three days to acclimate and that's throughout camp, so they're ready to go. The next step is pads and then the step after that is go play somebody else."

The Rams will have an intrasquad scrimmage at 12:30 p.m. Aug. 4 at the Edward Jones Dome. The scrimmage was played at Lindenwood University in St. Charles in recent years.

Their preseason opener is set for Aug. 12 against the Indianapolis Colts at Lucas Oil Stadium.

The Rams, who have won only 15 games over the last five seasons, have 30 rookies on their roster. They also have 14 veteran additions, including cornerback Cortland Finnegan, center Scott Wells, wide receiver Steve Smith, linebackers Jo-Lonn Dunbar, Mario Haggan and Rocky McIntosh, defensive tackles Kendall Langford and Trevor Laws and offensive linemen Quinn Ojinnaka and Barry Richardson.

They also added fullback Ovie Mughelli to their roster on Saturday.

The 6-foot-1, 255-pound Mughelli has played the last five seasons with the Atlanta Falcons. He was a fourth-round pick of the Baltimore Ravens in 2003 out of Wake Forest.

Known as a strong run blocker, Mughelli went to the Pro Bowl in 2010.

He will be competing with Brit Miller and rookie Todd Anderson for the starting job at fullback.

Fisher brings proven leadership to the Rams. His 142 wins are tied with the New York Giants' Tom Coughlin for third most among active NFL coaches.

But Fisher and his staff has several challenges facing them entering training camp, with getting quarterback Sam Bradford back to form after a second-year slump at the top of the list.

Brian Schottenheimer will be Bradford's third offensive coordinator in three seasons in the NFL.

Four of the Rams' five offensive line spots appear set with Rodger Saffold and Jason Smith at the tackles, Harvey Dahl at right guard and Wells at center.

However, the Rams also need to find a starting left guard out of group that includes Bryan Mattison, Ojinnaka and rookie Rokevious Watkins.

The team also needs to decide on a couple of starting outside linebackers to play alongside middle linebacker James Laurinaitis. Dunbar, McIntosh and Haggan are the leading candidates.

Danny Amendola, Brandon Gibson, Danario Alexander, Austin Pettis and Greg Salas are all back at wide receiver. Add draft picks Brian Quick and Chris Givens, who both will be given the opportunity to earn immediate playing time, along with Smith, who had a 107 catches for the Giants in 2009, to the mix and you have a major logjam at the position.

The Rams also could have a rookie kicker in Greg Zuerlein and a rookie punter in John Hekker.

Fans planning to attend the Rams' practice Sunday should take note to the impact that repairs to the Interstate 70 bridge over Earth City Expressway could have on traffic.

The cloverleaf ramps leading to the Earth City Expressway will be closed until 5 a.m. on Monday.

The Missouri Department of Transportation advises motorists attending Rams practice to use Route 370 or Route 364 (Page Avenue) to access the area.

Contact reporter Steve Korte at skorte@bnd.com or 239-2522.