he remained one of the top left-handed relievers in baseball through the 2004 season, though, rather infamously in 2001 and 2002, he threw the pitches that ended both cardinals' seasons during the mlb playoffs. in 2001, he gave up a walk off series winning single to tony womack of the arizona diamondbacks in the division series, and in 2002, kenny lofton got him for a similar hit in the nlcs to send the san francisco giants to the world series against the anaheim angels. however, he was a key cog in both postseasons for the cardinals. in fact, in 2001, kline was called upon to close out both cardinals victories in their 5 game division series loss to the diamondbacks, and he responded with 2 saves in those clutch situations.