**Tomos Williams’ try midway through the second half helped Cardiff Blues earn a first victory under new boss Dai Young as they overcame 14-man Scarlets 29-20.** \n\nFirst half scores from Willis Halaholo and Rey Lee-Lo gave the hosts the lead in the Welsh capital, after Jonathan Davies gave Glenn Delaney’s side the advantage earlier in the game. \n\nBut a red card for Liam Williams minutes before the break was the game-changing moment, as the winger was given his marching orders for an unsafe entry into the ruck. \n\nSione Klamafoni gave the visitors the advantage in the second-half, but the Blues had just enough to seal the win over their compatriots, as Williams earned his side the points with a crafty score just after the hour mark.\n\nIt was the hosts who started the scoring at the Cardiff City Stadium, as Jarrod Evans slotted through a penalty, before Davies responded with the first try of the game 13 minutes in to put Scarlets into the ascendency. \n\nThe Welsh international was on hand to seal the deal for the visitors, as he latched onto a beautiful delayed pass from Dan Jones which caught the Blues’ defence off-guard.