The 42-year-old Bonds, 22home runs from passing Hank Aaron’s career record of 755, told San Francisco’s KGO Radio on Tuesday that he has been receiving threats. “There’s a lot of times I want to say I’m sorry to some of the fans. You’re only strong to a point and then you get nervous,” Bonds told KGO during a 90-minute interview. “I’m kind of standoffish and stuff and you can’t really explain that. … I’m mostly gun-shy of what can happen. Once this is all over and done, whether I get lucky enough to do it or not, I’ll be able to release just a little bit of the anxiety and fear of what can happen. Marlins try to hook a fifth: With right-hander Josh Johnson sidelined by a sore arm, the Florida Marlins are auditioning candidates for a fifth starter to begin the season. Johnson has yet to throw from a mound during spring training, and the Marlins anticipate he won’t be ready for the start of the season April 2, manager Fredi Gonzalez said. Infirmary: Oakland outfielder Bobby Kielty needs arthroscopic surgery on his left knee and will be sidelined for three to six weeks. Center fielder Mark Kotsay also is out and underwent an MRI exam. He has a stiff back, a problem that affected him several times in 2006. … Chicago White Sox closer Bobby Jenks threw nine pitches in Chicago’s opening spring training game before being taken out against Colorado because of tightness in his right shoulder. He doesn’t expect to miss any game action. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Barry Bonds declined to elaborate Wednesday about death threats the San Francisco slugger says he is receiving. “We’re not going anywhere with that,” Bonds said while walking off the field following Wednesday’s workout at Scottsdale (Ariz.) Stadium. “You don’t want anything to happen to yourself. You don’t want anything to happen to your family.” Bonds has been closely guarded by a Major League Baseball security official throughout spring training for the second straight year. The seven-time NL MVP is scheduled to play his first exhibition game Friday in Scottsdale against the Milwaukee Brewers. Cain, Giants close: The San Francisco Giants and right-hander Matt Cain were close to agreement on a four-year contract with an option for a fifth year. “It’s ongoing,” said Bobby Evans, the Giants’ director of player personnel. “It’s not finalized.” Cain’s contract will be comparable to the deal left-hander Noah Lowry received last spring: $9.25 million for the same number of years.