Seahawks safety Earl Thomas held out all summer demanding a contract extension.But he rejoined Seattle shortly before Week 1 and has played in each game.Friday, however, Thomas missed practice, Seattle reporters said. Seahawks coach Pete Carroll was "vague" discussing the matter, per News Tribune beat writer Gregg Bell. Thomas missed practice due to personal issues rather than injury, Carroll told reporters.Will Thomas be available when 0-2 Seattle hosts the Cowboys in its home opener on Sunday?Carroll told reporters "we'll see" but didn't confirm Thomas' availability merely noting the issue is personal.The Cowboys and Seahawks have been engaged in trade talks on and off for months, after not agreeing to one draft weekend.SportsDay's David Moore reported Sept.