Close your eyes and think of some of the most famous sports broadcasters of all time. Guys like Howard Cosell, John Madden, Bob Costas and many more might come to mind. All of these guys are pros' pros; the best of the best. And they dress that way, too. A suit and tie is almost a prerequisite for being a great and memorable sports broadcaster if you want to be taken seriously. JASON DAY ASKED TO TONE DOWN MASTERS ATTIRE AFTER UNCONVENTIONAL CLOTHING CHOICE LAST YEAR John Madden poses with a bust at the NFL Pro Football Hall of Fame enshrinement at Fawcett Stadium in Canton, Ohio, on Aug. 5, 2006. (Kirby Lee/Getty Images) Apparently, no one handed that memo to ESPN's Stanley Cup Playoffs commentator, P.K. Subban, as the normally bombastic media personality had another vintage outfit on display for the whole world to see. And when I say "another," I'm not speaking in hyperbole, because this man is known for his, shall we say, questionable wardrobe choices while on the air.…