From seeing him in Thursday night's game, I think it's fair to say that Sano has completely filled out his frame. He has always been physically mature for his age, and I think it's safe to say he's done growing at 19, in terms of his frame. I suspect it will take a concerted effort on the part of he and the Twins training staff to prevent a mid-section expansion a la Fielder, Cabrera, Ortiz & others. But I think he showed the other night that he has the physical ability to play the hot corner. Obviously, fine-tuning his skills is required (as evidenced by his 42 errors at Beloit.) But I expect that the Twins' Brain Trust understands that as valuable as he can be at the plate, his worth increases exponentially if he can remain at 3rd base. I think it's safe to assume he will remain there until he absolutely proves that he is a liability. I seriously think we're still years away from that point.