Randy Johnson is all set to make his season debut for the Diamondbacks against the Giants on Monday in San Francisco, according to the Arizona Republic. He pitched six strong innings and threw 85 pitches during his final rehab start at Triple-A Tucson, giving him the confidence to take the mound for Arizona. "Every time he takes the mound he gets the attention of both teams - your team and the opposing team," manager Bob Melvin said of Johnson.