St. Louis Cardinals right-hander Mike Leake will duel the guy the San Francisco Giants chose to replace him during the winter when he opposes Jeff Samardzija on Saturday night in a key matchup in the National League wild-card race. Leake was acquired by the Giants from the Cincinnati Reds at the trade deadline. San Francisco paid a hefty price -- outfielder Adam Duvall has turned into a 30-homer player -- but the defending champs were trailing the Los Angeles Dodgers atop the NL West at the time and thought they needed to do something.