The San Francisco Giants went from winning at a phenomenal rate to reeling in a matter of weeks.
Their lead over the second-place Dodgers in the National League West has been cut in half, their hold of the Major Leagues' best record now belongs to their Bay Area neighbors, the A's, and overall they've lost eight out of their last 10 games.
Still, for left-hander Madison Bumgarner, nothing's changed in the San Francisco clubhouse.
"Everything seems to be the same as it was," Bumgarner said.
"That's why I think a lot of guys aren't worried because once it starts, people start getting mad or feeling sorry for themselves, that's when bad things start happening. But everybody seems to be the same, and that's the way you got to be in this game."
Bumgarner, 8-4 with a 2.85 ERA this season, will look to keep his team on the winning track in Sunday's series finale in Arizona.
Historically, Bumgarner has pitched well against the D-backs. In 15 games (14 starts), he's 4-4 but has a 2.71 ERA with 76 strikeouts in 86 1/3 innings.
"I don't really think about the other team," Bumgarner said. "We got enough to worry about ourselves. Just go out there and take care of your own business, play the game the way we know how."
As for the D-backs, they'll give the ball to rookie right-hander Mike Bolsinger in place of Bronson Arroyo, who was placed on the 15-day disabled list with a UCL strain. It's the first time Arroyo has been on the DL in his 15-year career.
Bolsinger made his big league debut in relief April 14, then made five starts for the D-backs before being sent back down, going 1-2 with a 5.70 ERA in 30 innings.
This will be the first time he's faced the Giants, but which Giants team he'll see depends on how they respond to their current adversity.
"We've been through times like this before," Bumgarner said. "Just go out there and just try to do the same thing you're always trying to do, no matter what the situation is. I think most everybody here tries to do that and tries to stay even keel and not get too far up or too far down."
D-backs: Owings likely to return to starting lineup
Shortstop Chris Owings should be back in the starting lineup Sunday.
Manager Kirk Gibson has been resting the rookie occasionally to allow him to process the skills the coaching staff is trying to instill in him.
"He's really coming along, and when he doesn't play every day, it kind of gives him an opportunity to stop, evaluate and work on some things," Gibson said. "He's really coming on in all aspects of his game right now, so I think it's working pretty good."
Gibson said Owings turned his ankle while covering second on a pickoff attempt last week, but that he was out of the lineup Saturday simply because the team wants to make sure Didi Gregorius does not sit on the bench for extended periods of time.
Giants: It's time for Panik
Infielder Joe Panik, the Giants' No. 14 prospect, has gotten the call from Triple-A Fresno and is slated to make his first start Sunday.
The 23-year-old infielder was hitting .321 with a .829 OPS (on-base plus slugging percentage) in 74 games at Fresno.
"He's doing a real nice job," Giants manager Bruce Bochy said. "This is a promotion he's earned. ... And we think at this point we could use some help at second base."
The Giants optioned outfielder Juan Perez to Fresno to make room for Panik, who was the 29th overall pick in the 2011 First-Year Player Draft.
• Giants first baseman Brandon Belt took batting practice Friday and could start a rehab stint within the next 10 days. Belt has been on the disabled list since May 9 with a broken thumb.
• The D-backs signed first-round Draft pick (16th overall) Touki Toussaint on Saturday for a deal above the pick's $2,338,200 slot.
Michael Lananna is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.