By Mark Lamport-Stokes AKRON, Ohio, Aug 2 (Reuters) - While Tiger Woods made an explosive birdie-eagle-birdie start to move two strokes clear in Friday's second round at the WGC-Bridgestone Invitational, defending champion Keegan Bradley seized the clubhouse lead. American Bradley, who triumphed by one shot at Firestone Country Club last year after closing with a superb six-under-par 64, maintained his bid for a fourth career victory on the PGA Tour by shooting a 68. ... More...