http://www.signonsandiego.com/sports/chargers/20051013-9999-1s13chnotes.html Steve Foley hopes to "ride this thing out until the bye week" in early November. He knows that goal is becoming increasingly unlikely and that he could even miss this week's game at Oakland and/or next week's at Philadelphia. The Chargers' starting weak-side linebacker and their emotional leader on defense has been told by a team doctor that he cannot keep taking indefinitely the pain medication that is helping allow him to play on Sundays despite an abdominal strain. "There is going to be some point where I miss a game or two," Foley said yesterday. "Really, you can't do any (rehab) for it. You've got to let it heal. It's not going to heal as long as I keep playing on it. You just hope it doesn't get worse." Foley suffered the injury against the New York Giants on Sept. 25. He has not worked during contact drills in practice but has played in both games since then. "I try to not to think about it," he said. "You have to work through it. The pain is still there, but this is a league of no excuses. Either you do or you don't. I'm going to do everything I can. I can't see myself not playing." 'Raider week' Marty Schottenheimer implores his team constantly to focus only on the game ahead. That tenet is being delivered with passion this week. Yesterday as he stood before the media, Schottenheimer grinned and uttered these simple words before anything else: "Raider week." Said receiver Kassim Osgood: "He doesn't like the Raiders. He never has. Marty always gets excited for Raider week. He's always the most excited person on the team. Right when you walk in, you see his eyes, he's ready to go, like, 'Raider week.' " Nuts 'n' bolts Right tackle Shane Olivea, who sprained his MCL on Monday against the Steelers, will not practice at least until tomorrow and his participation against the Raiders will be a game-time decision. . . . Cornerback Drayton Florence (ankle) was limping and did not practice. It appears his availability will not be known until the weekend as well. . . . Kicker Nate Kaeding will acknowledge only that his left (plant) hip is less than perfect. But he will not say it is affecting his kickoffs, which are decidedly shorter the past two games. The injury has not affected his field-goal kicking. He is 8-for-8 this season. . . . Rookie receiver Vincent Jackson, sidelined by calf and Achilles' injuries and has yet to be activated for a game, said he is feeling better this week than last and hopes to see action on special teams this week. . . . Guard Toniu Fonoti (hand) was out of his cast but did not practice. He is expected to be inactive at least one more game. . . . Returner Darren Sproles (ankle), tight end Ryan Krause (foot) and linebacker Stephen Cooper (ankle) also missed practice.