US Open Tennis The Koz at the US Open Written By: Dave "The Koz" Kozlowski Published: Sep 9, 2018 Updated: Sep 9, 2018 | Share | Facebook | Twitter | RedditMike Bryan & Jack Sock Win US Open Men’s Doubles. Coaches David Macpherson & Mark Knowles honored. | Share | Facebook | Twitter | RedditAbout the AuthorDave "The Koz" Kozlowski