In the fourth inning against the Phillies, with the Rockies down one, Trevor Story hit a triple to get into scoring position.

Then Colton Welker watched as veterans CJ Cron and Elias Díaz failed to move the runner, instead retreating back to the dugout. With two outs, the responsibility would fall on Welker, in just his second major league at-bat.

No pressure, kid.

Welker didn’t crack though. He thought he was too aggressive in his first at-bat in the second inning, so he took a deep breath and relaxed. Then he hit a line drive to center, safely reaching first as Story scored to tie the game. It was Welker’s first major league hit, and first RBI.

After serving 80-game suspension, Rockies’ Colton Welker gets major league call-up

They needed his heroics again later. In the top of the ninth, with two outs, the Rockies opted not to pinch-hit for Welker. Manage Bud Black said he thought Welker’s swing looked good, and Black liked the matchup of Welker against Phillies pitcher Ian Kennedy. The move paid off, as Welker hit a single, then Ryan McMahon hit a home run to give the Rockies the lead.

“It means a ton for a young kid to get an opportunity,” he said. “To have that trust, was very special to me.”

Sam Hilliard did the same as McMahon, sending a ball 434 feet to right field to secure the 4-3 come-back win over the Phillies. After being swept at home by the Giants, the Rockies got to start their 10-game road trip with a win.

“We’re playing teams who are fighting for playoff spots,” McMahon said. “That’s going to be our gig. It was a lot of fun playing spoiler tonight.”

Welker has impressed with his bat for some time, but major league pitching is obviously next level. He consistently hit near .300 in the minors, and he batted .286 in 23 games since his suspension ended. Welker tested positive for a banned substance in May, and missed 80 games this season.

The Rockies have tracked Welker closely over the past few seasons, and knew him well from his time in major league spring training. But he needed the consistent at-bats in the minors this season before they felt comfortable bringing him up — although he started on Thursday, he will likely be a bench player, falling in line behind Ryan McMahon at third and CJ Cron at first.

Welker has shown the potential with his bat, as well as improvements at defense, earning him this call-up. He wasn’t surprised he got the promotion, he thought he had proved himself and he said he believed in his abilities. He feels comfortable playing at both first and third now, and on Thursday he put together an impressive tag in the sixth inning to get Odúbel Herrera out.

Welker didn’t have anyone in Denver on Sept. 8 for his debut, but had a huge clan of family and friends in Philadelphia on Thursday. He is going to give the ball from his first major league hit to his mother.

“I’m so unbelievably happy,” he said. “That was definitely a dream come true.”

Yonathan Daza had two hits in his first game back from the injured list. He missed over a month after needing stitches in his hand after a household fall.

Antonio Senzatela continued his roll, giving up two earned runs in six innings. He’s thrown six consecutive quality starts, the longest stretch of his career and the most in a row by a Rockies pitcher this season. He gave up a home run to Bryce Harper in the first, then retired eight in a row before issuing a walk.

“That was a good one after a rough one yesterday,” Black said. “Guys came out here today with energy. Senza set the tone. I thought we played a really good game.”