RTÉ GAA analyst Dessie Dolan believes Kerry manager Jack O'Connor will "sharpen the knife" as his side travels to Croke Park on Saturday evening to face Dublin. When it comes to football’s most storied rivalry, this weekend’s league fixture doesn’t match the anticipation that often surrounds the game. Kerry are slowly cranking through the gears on the back of last year’s All-Ireland triumph while Dublin, under new manager Ger Brennan, are struggling at the wrong end of the Division 1 table. Still, it’s a game...