Mickey Mantle (1951-1953, 1955-1958, 1960-1964): Mantle is the holder of several World Series records. He holds the WS records for homeruns (18), runs (42), walks (43), RBI (40), total bases (123), and XBH (26). Additionally, the Mick holds 7 World Series rings and an astounding 12 pennants. His best statistical postseason was the epic 1960 series against the Pirates, which the Yankees lost in 7 games to Maz’s homerun. He went 10-25 with 8 walks. He hit 3 homeruns, and drove in 11 guys. He put up a superior .400-.545-.800 line. His third best statistical series, the best one where he got a ring, was his second against the Dodgers in 1952 with two HRs and an OPS over 1.000.
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Clemens (1986, 1988, 1990, 1995, 1999-2005) - He has pitched in six world series and 23 post-season series. He is 3-0 in WS play with a 2.37 ERA, and 12-8 with a 3.71 ERA in post-season play. His team has won 14 of 23 series, and he owns two World Series rings, both with the Yankees. His most notorious playoff appearence was when he threw a shard of a broken bat down the baseline, nearing a running Mike Piazza. Still, Clemens stats have shown him to be a very good postseason player.