ESPN.com has made its video player ESPN Motion available to Mac users, the Web site announced on Monday. Sports fans can add or subtract video clips to or from Motion’s playlist and watch streaming sports highlights in any order they want. The video can be enlarged or paused during playback, with a control available for the audio level. You don’t need to download and install any software to make Motion work, although ESPN.com does recommend viewing clips in Safari, Netscape, Mozille or Firefox — Internet Explorer only offers limited compatibility. The Flash 6 plug-in is required, however.