County cricket roundup: Root and Ballance tons salvage draw for Yorkshire

• Pair share partnership of 253 to frustrate Nottinghamshire
• Somerset pull off unlikely 74-run victory against KentUnbeaten centuries from Joe Root and Gary Ballance helped Yorkshire secure a draw at Trent Bridge.Nottinghamshire had declared overnight with Joe Clarke on 97 not out, denying him the chance to become the youngest Notts player to make two centuries in a match. Jake Ball then took a couple of early wickets but that was all the succour Notts were to get as Root and Ballanc