The Arizona 
Diamondbacks made the play-offs in 2002 but the 2003 season marked the beginning of changes to the team as they attempted to rebuild for extended success.
On March 31, 2003 the Diamondbacks would host the Los Angeles Dodgers at Bank One Ballpark in Phoenix AZ.
For the fifth straight year left-handed pitcher Randy Johnson would take the mound for the Arizona Diamondbacks.
The Opening Day line-up featured three different players from the previous season.
Matt Williams would return to third base after being injured the previous season.
Lyle Overbay would take over at first base for Mark Grace.
Chad Moeller would take over the starting catching duties.
For the third time in franchise history the Diamondbacks lost their season opener. The final score Diamondbacks 0 - Dodgers 8 in front of 47,356.
| 2003 | ||
| Order | Name | Position |
| 1. | Tony Womack | SS |
| 2. | Steve Finley | CF |
| 3. | Junior Spivey | 2B |
| 4. | Luis Gonzalez | LF |
| 5. | Danny Bautista | RF |
| 6. | Matt Williams | 3B |
| 7. | Lyle Overbay | 1B |
| 8. | Chad Moeller | C |
| 9. | Randy Johnson | LHP |
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