"So rather than address that specific instance, what I would say is this: I know a number of guys on tour that are loose with how they mark the ball and have not been called on it. I mean, they will move the ball two, three inches in front of their mark, and this is an intentional way to get it out of any type of impression and so forth and I think that kind of stuff needs to stop," Mickelson said. "But I think it should be handled within the tour. I think that the tour should go to those players and say, look, we've noticed you've been a little lax in how precise you've been in marking the ball. We'd like you to be a little bit better at it—and see if that doesn't just kind of fix the thing."