Game of Shadows: Barry Bonds, BALCO, and the Steroids Scandal that Rocked Professional Sports is a bestselling non-fiction book published on March 23, 2006, and written by Mark Fainaru-Wada and Lance Williams, reporters for the San Francisco Chronicle. When Sports Illustrated released excerpts from the book on March 7, it generated considerable publicity because the book chronicles alleged extensive use of performance-enhancing drugs, including several different types of steroids and growth hormones, by San Francisco Giants outfielder Barry Bonds. Investigation Fainaru-Wada and Williams conducted a two-year investigation centering on the BALCO sports nutrition center, its founder Victor Conte, and Greg Anderson, who served as a personal trainer (and alleged steroid supplier) for Bonds, Gary Sheffield, and Jason Giambi. In the book, the authors provide a summary of their sources, which include over 200 interviews that were conducted in the course of the investigation and over 1000 documents including affidavits from BALCO investigators and grand jury testimony. Based on their findings, Fainaru-Wada and Williams provide reasons that they believe Bonds and the other athletes decided to start taking steroids, and in some cases they provide detailed outlines of the specific steroid regimens set up by Anderson. Other athletes are implicated in the book, including Benito Santiago, track stars Marion Jones and Tim Montgomery, and NFL linebacker Bill Romanowski. Allegations concerning Barry Bonds The book is among the most damaging accounts of reported steroid use by Bonds. According to the authors, Bonds began using stanozolol, the same drug for which Ben Johnson tested positive after winning the 100 meters at the 1988 Summer Olympics, starting in the 1999 season. By 2001, the year Bonds broke Mark McGwire's single-season home run record with 73, he was alleged to be using the following performance-enhancers: "The cream and the clear," two designer steroids distributed by BALCO Human growth hormone allegedly sold on the black market by cancer patients to whom it was legitimately prescribed Insulin, which reportedly enhances the bodybuilding effects of growth hormone Testosterone decanoate, a steroid often nicknamed "Mexican beans" or "Red beans" Trenbolone, a steroid typically used in livestock, especially cattle Stanozolol, sold under the brand name Winstrol The authors also allege that at other times he used: Clomid, a drug normally prescribed for infertility used to restore serum testosterone levels following steroid supplementation Deca-Durabolin, a common steroid used by bodybuilders Norbolethone, a steroid developed for the meat industry in the 1960s,