Brian Johnson said it's "hard to dispute" that former teammate Barry Bonds cheated by using performance-enhancing drugs. Johnson, appearing Sunday on ESPN's "Outside the Lines," recounted what he told the staff of baseball steroids investigator George Mitchell. Johnson, a catcher with Bonds' San Francisco Giants in 1997 and 1998, also was asked by ESPN about Bonds, who tied Hank Aaron's career home run record on Saturday night. "You can make a fair argument that he may have been cheating," Johnson said. "Based on what has been documented, it's hard to dispute that argument."