HIGH POINT, N.C. – While battling adversity throughout the day, including an early deficit and extra innings, USC Upstate baseball remained poised as it battled back to earn a series sweep over High Point with an 8-6 extra-inning victory in Sunday’s series finale. Trailing for the first time in the series as High Point jumped out in the first with a pair of solo homers, the Spartans kept fighting, scratching for a run in the third as redshirt junior rightfielder Daniel Gernon ripped a double inside the third base bag. Upstate took the lead with a four-spot in the sixth…