The possibility of Clay Buchholz pitching for the Red Sox again this season gained traction yesterday when the righthander threw 30 pitches off the mound in the bullpen. Buchholz was on the field about four hours before the Sox played the Rays. With Conor Jackson standing at the plate with a bat and Ryan Lavarnway catching, Buchholz went through his usual routine of pitches. It was his first time in the bullpen since early August. Buchholz has been on the disabled list since June 17 with a stress fracture in his back.