- Associated Press - Sunday, April 3, 2011

SAN FRANCISCO (AP) - Prosecutors in the Barry Bonds perjury case will try this week to regain momentum after the slugger’s orthopedic surgeon undermined the credibility of a key government witness.

Dr. Arthur Ting denied discussing Bonds’ alleged steroid use with the home run king’s business manager. Steve Hoskins had testified he had 50 conversations with the doctor. Hoskins also said Ting told him Bonds’ 1999 elbow injury was caused by steroids.

Legal observers say Ting’s testimony Thursday hurt the government’s efforts to convict Bonds of lying to a grand jury when he denied knowingly taking steroids.

Still, observers say Ting’s testimony didn’t undercut the charge Bonds lied when he said no one other than the doctor injected him with anything.