Ruben Sierra had a .250 batting average with a hit and 2 RBIs in 5 games in the World Series in his career.
| NAME | DATE | SEASON | SERIES | TM | OPP | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | R. Sierra | 10/18/2003 | 2003 | World Series |  NYY | vs |  FLA | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2 | | R. Sierra | 10/21/2003 | 2003 | World Series | NYY | @ | FLA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3 | | R. Sierra | 10/22/2003 | 2003 | World Series | NYY | @ | FLA | 1 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 1 | 0 | 0 | 0 | 0 |
| 4 | | R. Sierra | 10/23/2003 | 2003 | World Series | NYY | @ | FLA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 5 | | R. Sierra | 10/25/2003 | 2003 | World Series | NYY | vs | FLA | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 4 | 0 | 1 | 0 | 1 | 0 | 2 | 1 | 0 | 3 | 0 | 0 | 5 | 3 | 1 | 0 | 0 | 0 | 0 |
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