ALAMEDA -- Receiver Denarius Moore left the Raiders' first mandatory mini-camp session today after tweaking a hamstring, head coach Dennis Allen said. Moore and Darrius Heyward-Bey were the receivers working with the first-team offense.
"He's going to be fine," Allen said. "We'll evaluate it when we get back in here and kind of see where we're at. Usually those things might take a couple weeks or so, so we'll see where he's at."
Allen said the Raiders had 100 percent attendance at today's camp. Safety Mike Mitchell (knee) and fullback Manase Tonga (knee) were the only players not seen on the field. The Raiders don't want to rush them, Allen said, so they probably won't start practicing until training camp.
Not practicing were center Stefen Wisniewski (shoulder), linebacker Dave Tollefson (calf) and defensive tackle Travis Ivey. Defensive tackle Richard Seymour and Shane Lechler were both here after electing not to participate in the voluntary OTAs open to media over the last month. Defensive end Matt Shaughnessy was also on the field after missing OTAs with a shoulder injury.
Though the workout was mandatory, Allen was happy about the turnout.
"We're building a team, and the only way you can build a team is to have everybody here to build the team," Allen said. "We've got to work together to build chemistry, build camaraderie within the team, and at the end of the day, it's those bonds that you develop during these times and in training camp that take you through the rest of the season."
A few other observations:
* Owen Schmitt lined up at fullback with the first-team offense, not Marcel Reece, though Reece is probably still playing catch-up after missing the first two weeks of OTAs. Brandon Myers was the first-team tight end.
* After Moore left the field, Eddie McGee filled in for him in team situations.
* Lechler unleashed some big punts. Jacoby Ford was first in line fielding them. At one point, the group fielding punts dropped three in a row.
* The Raiders announced they brought in another tight end, Tory Humphrey. Humphrey played in seven games over the past three seasons with the New Orleans Saints. He has 13 career catches for 181 yards.
* Tomorrow's print story will be on Seymour getting up to speed with the defense, and his early impressions of the coaching staff (he likes them).
-- Matt Kawahara