A coach and board member of a Corpus Christi youth sports league was arrested Sunday on charges of child grooming and online solicitation of a minor, more than a week after a civil lawsuit detailed allegations that he used his position to sexually solicit and groom a 14-year-old girl in his league.Harry Wallace Grabowske IV, 38, also known as "Wally" Grabowske, was booked into the Nueces County jail on June 21, according to booking records. Bond…