Arroyo, who played for the Boston Red Sox from 2003-05, was quoted in Friday's Boston Herald as saying he took androstenedione and amphetamines, which could have produced positive tests.

Any player who tested positive was supposed to be informed by the players' union, and Arroyo said he was never notified.

Pedro Martinez left his rehab start after allowing five runs -- four earned -- and three hits in five innings for the Triple-A Lehigh Valley IronPigs, the Philadelphia Phillies' top minor league affiliate. Using a fastball that reached 93 mph on the stadium radar gun and an effective changeup, Martinez breezed through four innings against the Columbus Clippers, allowing only one run. He then gave up four more in a 35-pitch fifth.

Basketball

Celtics waive Gabe Pruitt

The Boston Celtics are requesting waivers on guard Gabe Pruitt. The move was announced by the team. Pruitt, a second-year player, was chosen by the Celtics with the 32nd pick in the 2007 draft. The 6-foot-4, 170-pound guard averaged 2 points per game in 62 games. He last played for the Celtics during this year's Orlando Summer League, posting an average of 10.6 points, 4.8 assists and 1.6 steals per game.

GOLF

Woods shoots best round in years

Tiger Woods had the best five-hole start of his career, chipping in for eagle and making four birdies. Woods finished with a season-low 9-under 63 in the Buick Open to shoot up the leaderboard. The round was his best round in relation to par in four years.

John Senden shot a 66 to take the second-round lead at 14 under, two shots ahead of Michael Letzig (65) and another in front of Vaughn Taylor (68) and Bill Lunde (65).

Catriona Matthew picked up five strokes to par in a brilliant three-hole stretch in the Women's British Open. Playing 10 weeks after having her second child, the Scot followed an eagle on the par-5 11th with a hole-in-one on the 12th and added a birdie on the par-4 13th.

She finished with a 5-under 67 for a share of the second-round lead with Giulia Sergas at 3-under 141. Sergas also shot a 67.

Tennessee amateur Tim Jackson left Greg Norman and Joey Sindelar behind in the U.S. Senior Open. The 50-year-old real estate developer shot a 5-under 67 at Crooked Stick to take the lead at 11-under 133 -- matching the lowest 36-hole total in event history.

COLLEGES

Hawaii suspends football coach

Hawaii coach Greg McMackin was suspended for 30 days without pay and has volunteered to take an additional 7 percent pay cut from his $1.1 million salary for making a derogatory comment while describing Notre Dame's chant before last year's Hawaii Bowl. Athletic director Jim Donovan said McMackin will remain with the team on a voluntary basis during the suspension. McMackin met with Donovan and Chancellor Virginia Hinshaw.

The second-year Warriors coach has repeatedly apologized for the comments made during a media briefing Thursday at the Western Athletic Conference football preview in Salt Lake City. He used a slur usually targeted at gays to describe Notre Dame's chant performed at a banquet before last year's Hawaii Bowl.

GENERAL

Ex-trainer sues Clemens

Roger Clemens' ex-trainer has sued the former star pitcher for defamation. In the lawsuit filed in federal court in Brooklyn, Brian McNamee accused Clemens of launching a public campaign to discredit him after the trainer claimed Clemens used steroids. McNamee has told federal agents, baseball investigator George Mitchell and a House committee that he injected Clemens more than a dozen times with steroids and human growth hormone from 1998 through 2001. Clemens has denied using performance-enchancing drugs.