After four games, the Nationals have yet to have a quality start. They hope that Jerome Williams can break the string.

Positive thinking and fixing his mechanics helped him shine in his last three starts in Spring Training and earn a spot in the rotation.

Williams is looking to have his best season since 2003 when he was a rookie with the Giants. Williams will face the Diamondbacks for the ninth time in his career. He is 4-3 with a 3.24 ERA against them.

Pitching matchup
WSH: RHP Jerome Williams (0-2, 7.30 ERA in 2006)
Williams is looking to pick up his first win since the 2005 season, when he was with the Cubs.

ARI: Micah Owings (0-0, 0.00 ERA)
Owings will be making his Major League debut against the Nationals.

Player to watch
Now batting in the sixth spot in the lineup, catcher Brian Schneider, is tied for the team lead in RBIs with four.

On the Internet
 MLB.TV
 Gameday Audio
•  Gameday
•  Official game notes

On television
• WSH: MASN

On radio
• WSH: WTWP 1500

Up next
• Saturday: Arizona (Brandon Webb, 0-0, 9.00) at Washington (John Patterson, 0-1, 14.73), 7:05 p.m. ET
• Sunday: Arizona (Livan Hernandez, 0-1, 7.20) at Washington (Shawn Hill, 0-1, 7.20), 1:35 p.m. ET
• Tuesday: Washington (Matt Chico, 0-0, 13.50) at Atlanta (Tim Hudson, 0-0, 1.29), 1:35 p.m. ET