Vinny Testaverde missed a third straight day of practice on Friday, increasing the chances that Carolina Panthers' rookie Matt Moore could make the first regular-season start of his career Sunday against the Seattle Seahawks. Coach John Fox said he will wait until Sunday to make a decision on his starting quarterback. If Moore does start, the Panthers, losing six of their last seven games to fall to 5-8 on the year, will become the first team in the NFL this season to use four different starters. Claimed by the Panthers on waivers after he was released by the Dallas Cowboys in the final cutdown to the regular-season roster, Moore has made six appearances this season. The former Oregon State standout, who originally signed with the Cowboys as an undrafted free agent, has completed 14-of-32 passes for 166 yards, with no touchdown passes and three interceptions, for a 21.1 passer rating. Moore, 23, recently moved ahead of David Carr, who has started four games but been a major disappointment for the Panthers and into the No. 2 spot on the depth chart.