Pro tours: The stops and the talk WORLD GOLF CHAMPIONSHIPS Event: NEC Invitational Site: Firestone Country Club, South Course (7,230 yards, par 70), Akron, Ohio. Schedule: Today-Sunday. Purse: \$7 million. Winner's share: \$1.2 million. Television: ESPN (today-tomorrow, 3-7 p.m.) and Channel 4 (Saturday, 2-6 p.m.; Sunday, 2:30-6:30 p.m.). Last year: Darren Clarke won his second WGC title, beating Jonathan Kaye by four strokes. Last week: Vijay Singh ...