Who Will Replace Michael King in Padres Rotation?

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The San Diego Padres placed right-handed pitcher Michael King on the 15-day injured list with right shoulder inflammation Sunday.
King is dealing with a scapula issue after sleeping in an awkward position ahead of Saturday's start.
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As injuries go, this figures to be a minor one. Because of Thursday's off-day, the Padres could have rolled with their four healthy starters — Randy Vasquez, Stephen Kolek, Nick Pivetta and Dylan Cease — for another week until King's spot in the rotation comes back around on June 3.
However, they won't do that, as the team is bringing up Kyle Hart to start Wednesday's game.
"We could take advantage of the off-day, to give Nick a little extra time," Padres manager Mike Shildt told reporters Monday in San Diego. "We're always intentional about it. We've had a really good schedule taking place this year relative to off-days. We've been able to keep our starting pitchers fresh. We're continuing to be intentional about what looks like."
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The Padres signed Hart in February after he had a promising (13-3, 2.69 ERA) 2024 season in the Korean Baseball Organization. The left-hander has split the 2025 season between San Diego and Triple-A El Paso.
Hart is 2-0 with a 2.29 ERA in four starts with the Padres' top farm team, and 2-2 with a 6.00 ERA in five starts with the Padres.
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The other option to start the game was Matt Waldron. The knuckleballer has been on the injured list since spring training because of a left oblique strain. He began a rehab assignment on May 15.
Waldron was 7-11 with a 4.91 ERA in 27 games (26 starts) last year, but did not finish the season in the rotation. The right-hander stretched out to 4.1 innings on Monday in a rehab start with Double-A San Antonio.
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In theory, that could foretell a five-inning-or-more start in his next outing, regardless of the level. In practice, the Padres' front office might have preferred Waldron get one more start in the minors before bringing Waldron to San Diego.
Besides, Shildt said, "everybody in the organization is comfortable and confident" in Hart's ability to fill in Wednesday.
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Barring another unforeseen injury, just how long Hart remains in the Padres' rotation figures to depend on King's recovery.
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J.P. Hoornstra is an On SI Contributor. A veteran of 20 years of sports coverage for daily newspapers in California, J.P. covered MLB, the Los Angeles Dodgers, and the Los Angeles Angels (occasionally of Anaheim) from 2012-23 for the Southern California News Group. His first book, The 50 Greatest Dodgers Games of All-Time, published in 2015. In 2016, he won an Associated Press Sports Editors award for breaking news coverage. He once recorded a keyboard solo on the same album as two of the original Doors.
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