There are always new rules questions that pop up, this is one for me. Runner on second with a fly ball into left center. Fielder makes a sliding catch. runner leaves early (according to the umpire) she slides into 3rd beating the throw and is then tagged while on the base. Umpire calls her out for leaving early and being tagged. Since she was safe on the slide is this now an appeal play or is she out because she was tagged and not legally entitled to advance to 3rd base?