I understand what IndyBison is saying and I think you guys are missing the proper interpretation. Think of the field boundaries as a box. I can touch the sides of a box and still be inside the box, right? Same principle seems to apply here. He could be essentially touching the sideline but not actually crossed over the boundary between the sideline and the field - i.e. he's still 'inside the box' so to speak. That's the way I think of the 'by the book' application of the rule and I think what IndyBison is trying to say. No part of his foot is actually overlapping the interface between the field (i.e. the green part) and the sideline (the white part). It's splitting hairs at this point, but I can see why they didn't overturn it - I don't like the outcome, but I understand the application of the rule.