CHICAGO -- Knowing two runs were in on his single to center, Ian Happ headed over to high-five Cubs first-base coach Mike Napoli. That was when the left fielder heard the Wrigley Field crowd rise together with a second, unexpected roar.

Not even Happ saw Dansby Swanson's extra push to the plate coming.

"No idea," Happ said with a smirk.

The Cubs overwhelmed the error-prone Rangers in a 10-3 rout at the Friendly Confines, where Chicago's lineup applied constant pressure and capitalized on mistakes. Manager David Ross hopes that remains a staple of his offense deep into the season.

Swanson put that on full display in the eighth inning, when he was on first base for Happ's bases-loaded hit through the middle of the infield. The Cubs shortstop easily hustled from first to third, turning to watch how Texas handled the relay from center.

"I talk a lot about this group and the baseball player IQ, right?" Ross said. "[Swanson was] just keeping his head up and finishing the play."

Rangers center fielder Adolis García gloved the single from Happ and casually tossed the ball toward second base. The ball bounced in front of shortstop Corey Seager, who bobbled the errant throw before turning to check on Swanson.

Swanson was off to the races.

"That's who he is," Happ said. "That's why he's played on so many winning teams and has been a part of so much of it. He loves this stuff. He loves being out here. He loves competing."

Swanson hustled home, beat the throw and -- as Happ finished up his high-five with Napoli -- slid head-first with his left hand hitting the plate to cap off a four-run outburst for the Cubs. With his helmet skipping across the dirt, Swanson jumped to his feet and aggressively pumped his fist twice.

Even with an eight-run lead at that juncture, Swanson let his emotions pour out.

"The energy is there," Cubs third baseman Patrick Wisdom said. "We feed off it. We were doing that in the dugout, too. We just know how important runs are in this game, and especially late in the game. You can put the game out of reach."

Swanson played a role in three of Chicago's rallies on Saturday.

In the first, he reached on an infield single, moved to second on one of Texas' five errors in the game, advanced to third on a balk and later scored. In the third, Nick Madrigal led off with a double and Swanson brought him home with an opposite-field single. The shortstop walked in the eighth ahead of Happ's hit.

And Swanson did all that while dealing with an emotional day. Shortly before the game, the shortstop and some of his teammates were watching the U.S. women's national soccer team play against Ireland. Swanson's wife, star forward Mallory Swanson, was carted off the field with an apparent knee injury.

"It's pretty impressive for him to be able to come out and do what he did," Happ said. "We were all watching the game earlier. Pretty somber. For him to be able to do that and show that kind of emotion -- we're feeling for him and his family -- the ability for him to do that and go out and play baseball and compete, it's impressive."

This was hardly a one-man show on Saturday, though.

Both Wisdom and Yan Gomes launched home runs. Trey Mancini had a three-hit day, while Nico Hoerner, Swanson, Madrigal and Wisdom each collected two hits apiece. Hoerner and Bellinger each stole a base. The group went 4-for-8 with runners in scoring position, raising Chicago's season average to .349 in such situations. It was more than ample in backing a stellar six-inning start from Justin Steele.

It was the kind of total offense the Cubs hope to keep featuring this year.

"Everybody's coming up with big knocks," Wisdom said, "especially with guys in scoring position. And running the bases really well, which helps, definitely. You've got Dansby scoring on that play at the end."

That play was mentioned multiple times after the win.

Little moments like those will continue to be crucial for the Cubs to get the most out of their lineup.

"The Dansby last run just stands out,” Ross said, “of just the character of the group.”