Zack Greinke didn't have a lot to say on Monday when asked about a potential contract extension with the Brewers. San Francisco has made Matt Cain the richest right-hander in baseball history with a deal reportedly worth $112.5 million. "We'll see," Greinke said with a smile when asked if Cain's contract would have a bearing on his next deal. The Major League Baseball Players Association confirmed Monday morning that Greinke still has not registered an agent.