Even Pete Rose, the man who made the headfirst slide fashionable, says there's a time and place to be prudent.FILE - In this April 5, 2014, file photo, Los Angeles Dodgers' Yasiel Puig slides into first base, but is called out against the San Francisco Giants in a baseball game in Los Angeles. Bryce Harper of the Washington Nationals, Puig and Josh Hamilton of the Angels are among several stars who have gotten hurt sliding that way this year.FILE - In this April 10, 2014, file photo, Washington Nationals' Bryce Harper slides safely into third as Miami Marlins third baseman Casey McGehee can't make the tag in time during the fourth inning of a baseball game at Nationals Park in Washington. Harper, Yasiel Puig of the Dodgers and Josh Hamilton of the Angels are among several stars who have gotten hurt sliding that way this year.FILE - In this Sept. 8, 1981, file photo, Pete Rose, bottom, dives safely into third on a sacrifice by teammate Gary Matthews during early action against the Montreal Expos in Philadelphia, Pa. If Rose played today, his signature dives wouldn't be much of a novelty. It's become common in the majors for runners to fling their arms out, lead with their faces and...