Video clearly shows Aybar diverted into fair territory, and out of his baseline, before any A's fielder ever stepped off the grass - and the grass is all in fair territory and all outside of Aybar's designated base path.

The 4-second mark of the video shows Aybar having changed his line to run directly into the A's fielders. He changed his line even though his original line, also his designated base path per MLB rules, was clear.

http://mlb.mlb.com/mlb/gameday/index.jsp?gid=2014_08_28_oakmlb_anamlb_1&mode=recap_home&c_id=ana#gid=2014_08_28_oakmlb_anamlb_1&mode=video