Rodriguez, who turns 37 this month, has admitted to using steroids only during a three-year period, 2001-2003, when he was with the Texas Rangers. In 19 years in the majors, the slugger has 642 home runs, good for fifth all-time.
Jackson said there will be a boycott if Rodriguez or Barry Bonds or anyone else who has been linked to PED use is voted into the Hall.
"If any of those guys get in, no Hall of Famer will attend," Jackson said.
Last month, Hall of Famer Goose Gossage called out Roger Clemens, saying the seven-time Cy Young winner has lied about steroids, cheated, and does not belong in the Hall.
End of the road for Moyer?
The Blue Jays have released 49-year-old Jamie Moyer after two starts for the triple-A Las Vegas 51s, according to the 51s' official Twitter feed. Moyer, who was released by the Rockies and the Orioles this season, signed a minor-league contract with the Blue Jays on the condition that he would be given his release if he does not get promoted after two trial starts with the 51s. After two starts he was 1-1 with an 8.18 ERA.
Dodgers' woes continue
Already reeling from losing their two best hitters, the Dodgers now have to do without shortstop Dee Gordon, a light-hitting dynamo who gets things started. Gordon, who leads the National League with 30 stolen bases despite hitting just .229, has a torn ulnar collateral ligament in his right thumb. He will require surgery, and be out of the lineup about six weeks.
As for star outfielders Matt Kemp and Andre Ethier, Dodgers manager Don Mattingly hopes to have both back soon after next week's All-Star Game.
Stat of the moment
The Braves' Chipper Jones is just one RBI shy of tying Phillies great Mike Schmidt's mark of 1,595, and two behind George Brett's 1,596.
Stat of the moment, Pt. 2
Fouling out to lead off the fifth inning Thursday against Cleveland, Tampa Bay's Luke Scott set a club record for futility by going 38 straight at-bats without a hit.
Lee's successful debut
Carlos Lee and Miami's Ozzie Guillen are already on the same page.
"Ozzie is a good manager," Lee said before Thursday's game against Milwaukee. "All he wants is for you also to play the game right. I feel the same way."
Lee then proved it by doubling and scoring in the Marlins' 4-0 win over the Brewers.
This report contains information from Inquirer wire services.