OAKLAND -- The Raiders continue to be without No. 1 overall draft pick JaMarcus Russell, who remains unsigned in a contract dispute.
The two sides met Friday and Saturday in the Bay Area, but were unable to bridge the gap that centered mostly on the amount of guaranteed money Russell will receive.
Russell is believed to be seeking about $31 million in guarantees, which would be a record for a rookie.
The Lions gave No. 2 pick Calvin Johnson $27.2 million in guaranteed money this year.
Even if the sides do reach a deal soon, it's unlikely Russell will be able to contribute much to the Raiders this season. Playing quarterback as a rookie in the NFL is difficult and Russell will have missed all of training camp and the exhibition season.
Coach Lane Kiffin refused to announce whether McCown or Daunte Culpepper would start at quarterback in the opener, hoping to gain a competitive advantage by making the Lions prepare for both quarterbacks. With McCown getting the majority of snaps with the first team in practice this week, it became clear he would start.
McCown was 30 for 40 for 313 yards with two touchdowns and two interceptions in Oakland's 36-21 loss to Detroit.
It was McCown's 23rd career start and first since the end of the 2005 season, when he was with the Arizona Cardinals. McCown spent last year as the backup to Jon Kitna in Detroit, catching more passes than he threw.
Given a chance to play receiver late in the season for the banged-up Lions, McCown caught two passes.