Kevin Youkilis belted a go-ahead grand slam in the fifth inning Tuesday, powering the Chicago White Sox to a 7-3 victory over the New York Yankees. The score was tied 2-2 in the fifth when Chicago loaded the bases with one out against Ivan Nova (11-7) and Youkilis followed by smacking a 1-0 pitch over the fence in right-center field, breaking the game open. Paul Konerko went 2-for-4 with a solo shot while Dewayne Wise added four hits and scored a run for the American League Central-leading White Sox, who clinched their three-game series against AL East-leading New York. Francisco Liriano (5-10) earned the victory, allowing a pair of runs on six hits over six innings. The left-hander walked three and struck out seven. Nova ended up allowing six runs on seven hits over six frames. Derek Jeter and Russell Martin homered for the Yankees.