Grand jury probing whether Bonds paid taxes on memorabilia money

The easy money Barry Bonds made by selling his name, likeness and sports equipment through his Web site and through autograph sessions could prove to be the embattled slugger's legal undoing.

A federal grand jury is probing whether he paid taxes on some of that income and key government witnesses include a scorned business partner and a jilted lover who profited from the name "Barry Bonds." He also is being investigated for allegedly lying to another federal grand jury about his steroid use.

A Bonds indictment could come as soon as tomorrow when the grand jury investigating his case is expected to end its service. But the grand jury's term could be extended or a new panel could be given the investigation, former prosecutors said.