SAN FRANCISCO -- The Giants announced Tuesday that Tim Lincecum and Madison Bumgarner will flip turns in the rotation during this week's three-game series with the D-backs, allowing Lincecum to remain on his regular five days' rest.

Lincecum now will throw Wednesday, while Bumgarner will pitch in Thursday's series finale.

The move also sets up Lincecum to be available in a possible one-game tiebreaker game, or potentially throw on three days' rest in Sunday's regular-season finale against the Padres, whom the Giants currently have a one-game lead over in the National League West.

The Giants and Padres close the season with a three-game series Friday through Sunday at AT&T Park.

"We're just keeping Timmy on his regular rest," Giants manager Bruce Bochy said. "He's pitching on his fifth day, [and we're giving] Madison a couple extra days, so that's our thinking. Down the road that does have Timmy available a little sooner, but we just wanted to keep our guy on every fifth day and give Madison a little break."

Bumgarner, a rookie left-hander, has thrown a career-high 188 2/3 innings this season between the Minors and Majors, but Bochy said the decision to switch the two had more to do with keeping Lincecum on regular rest.

Although the switch sets up nicely to throw Lincecum in a potential one-game playoff, Bochy said that wasn't the overlying factor.

"Probably not as much as you'd think," Bochy said. "We just wanted to keep Timmy on the fifth day. As we get down to that area, we'll have a better idea where we're at, and if we have to adjust we'll do it."

Lefty Sanchez reaches lofty strikeout mark

SAN FRANCISCO -- With a sixth-inning strikeout of D-backs center fielder Chris Young on Tuesday night at AT&T Park, Giants starter Jonathan Sanchez punched his way into Giants history.

The 27-year-old Sanchez became the first Giants left-hander to fan at least 200 batters in a season since Ray Sadecki struck out 206 batters in 1968. He is the fourth lefty in Giants history to hit the milestone, also joining Cy Seymour (239 strikeouts, 1898) and Rube Marquard (237, 1911).

Sanchez said he doesn't keep track of his personal stats and had no idea he was close to the 200 mark until pitching coach Dave Righetti gave him the ball after he got back into the dugout. When asked about the accomplishment, Sanchez responded by saying, "That's a lot of strikeouts."

Sanchez joins Tim Lincecum (220 strikeouts) in the 200-strikeout club, and the duo is only the fourth pair of teammates in San Francisco history to have at least 200 strikeouts in one season.

Other teammates to do it have been Juan Marichal (222) and Gaylord Perry (201) in 1966, Marichal (218) and Sadecki (206) in 1968 and Perry (233) and Marichal (205) in 1969.

The Giants duo joins Philadelphia's Roy Halladay (219) and Cole Hamels (209) as the only set of teammates to fan 200 or more batters this season.

Giants hope Sanchez can return Wednesday

SAN FRANCISCO -- An MRI showed a mild strain in Freddy Sanchez's right shoulder, Giants manager Bruce Bochy said Tuesday, and the Giants second baseman received a shot and was given Tuesday off.

Bochy said he was hopeful Sanchez would return to the lineup Wednesday.

"We're anticipating that he'll be able to go tomorrow," Bochy said Tuesday. "We'll have to check on him tomorrow, but if he's feeling better that's good news for us."

Sanchez strained the shoulder as he threw across his body while turning a double play in Saturday night's 10-9, 10-inning loss to the Rockies.

The injury hasn't hindered Sanchez at the plate, as the second baseman has boasted one of the team's hottest bats, hitting .393 (44-for-112) in his last 28 games.

Rest helps Torres return to Giants' lineup

SAN FRANCISCO -- Andres Torres was back atop the Giants' lineup in Tuesday's series opener at AT&T Park, and the Giants center fielder and leadoff hitter said he expects to be in there for the season's remaining six games.

Torres, who apparently broke some scar tissue while making a running catch Saturday, said he felt a lot better after sitting out Sunday's game at Colorado and Monday's off-day. The 32-year-old has continued to get the scar tissue massaged in hopes of avoiding similar painful stretching he felt Saturday.

"The doctors told me it'll feel a little bit better and get better with time," said Torres, who entered Tuesday's game hitting .269 with 15 home runs and 61 RBIs.

Giants manager Bruce Bochy said he thought Torres getting back into his normal routine would help as well.

"Getting a couple days off certainly helped him," Bochy said. "Probably as much as anything we've got to back off him a little bit because he's working so hard and he's going in and out of the cage so many times he's probably been overworked a little bit"

Worth noting

With so much talk of the rotation flip-flop between Tim Lincecum and Madison Bumgarner, Bochy was asked if the playoff rotation would get set up similar to the regular rotation of Lincecum, Barry Zito and Matt Cain. "That's getting ahead of ourselves," Bochy said. "We'll address that as needed. Our focus right now is to get there." ... Bochy said shortstop Edgar Renteria, who missed eight games with an inflamed right elbow, was available for Tuesday's game. ... The time for Saturday's game between the Giants and Padres has been moved from 6:05 p.m. PT to 1:10 p.m. PT to accommodate the game being selected as FOX Sports' Saturday Game of the Week.