SAN FRANCISCO -- The Padres have some clarity for who is going to start and when for their weekend series against the Colorado Rockies at PETCO Park.

San Diego manager Bud Black said Tuesday that long reliever Edward Mujica (3-4, 3.51 ERA) will get the start against the Rockies but will certainly be followed to the mound at some point by a reliever or two, as Mujica is expected to throw up to 60 pitches.

Mujica takes the spot of rookie Mat Latos, who normally would have started Friday but has been shut down after throwing 123 combined innings in the Minor Leagues and with the Padres this season.

Mujica will pitch Friday, Tim Stauffer will go Saturday and Clayton Richard pitches Sunday. The move, Black said, was to give the starting pitchers in his rotation -- like Wednesday starter Wade LeBlanc -- an extra day of rest, which he said is never a bad thing at this time of year.

"We wanted to give our starters an extra day. ... They could benefit from an extra day of rest," Black said.

The Padres have some pitchers who are reaching high innings totals, like LeBlanc, who gets the start at AT&T Park against the Giants in the final game of the three-game series.

LeBlanc has thrown a combined 137 1/3 innings this season between Triple-A Portland and San Diego. Last season, he threw 160 combined innings between the same two teams. Richard, Stauffer and Kevin Correia have either already thrown or are on pace to throw more innings in 2009 than last season.

Pitching matchup
SD: LHP Wade LeBlanc (1-1, 6.06 ERA)
In his best career outing to date, LeBlanc held the Dodgers to two hits over six scoreless innings in his last start Friday. The left-hander, who gets a lot of mileage out of his changeup, showed much better command than he did in his first two starts earlier this season when he allowed seven earned runs in 4 1/3 innings. He walked three and struck out two against the Dodgers and, while giving up several hard-hit balls that were turned into outs, pitched well.

SF: LHP Barry Zito (9-11, 3.95 ERA)
Zito settled down after the Brewers scored two runs, stole three bases and pounded three long fly balls just foul in the first inning, but he was replaced after throwing 96 pitches through four frames. Largely responsible for his departure was his count of five walks, something that has plagued the left-hander on two recent occasions. He allowed six walks on Aug. 24 at Colorado -- and six walks in his other five August starts combined.

Tidbits
Tuesday was Padres catcher Nick Hundley's 26th birthday. He was born in Corvallis, Ore., where his father, Tim, was an assistant football coach at Oregon State. His father is now the secondary coach for UCLA. ... Adrian Gonzalez clubbed his 36th homer of the season Monday, matching his career high set in 2008. With one more long ball, he will have increased his home run total from year-to-year over each of the six seasons of his Major League career. He is now in sole possession of the Major League lead for road home runs with 25. ... Going into Tuesday's game, the Padres were hitting 22 points higher as a team since the All-Star Game. Prior to the break, the club hit .233 with a .311 on-base percentage and .370 slugging percentage. Since then, it is hitting .255 with a .329 on-base percentage and a .403 slugging percentage.

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Up next
• Thursday: Off-day
• Friday: Padres (Edward Mujica, 3-4, 3.51) vs. Rockies (TBD), 7:05 p.m. PT
• Saturday: Padres (Tim Stauffer, 4-6, 3.49) vs. Rockies (Ubaldo Jimenez, 13-10, 3.32), 7:05 p.m. PT