Padres Notes: Jackson Merrill's Milestone, Ha-Seong Kim's MRI, Rehab Assignments Coming

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The San Diegeo Padres erased a one-run deficit over the final three innings Tuesday in St. Louis to secure a 7-5 victory over the Cardinals. They narrowed the gap between first and second place in the National League West to three games.
Here's all the headlines you might have missed Tuesday:
Jackson Merrill's Record-Breaking Performance
Rookie outfielder Jackson Merrill has set a record for the most go-ahead or game-tying homers in the ninth inning or later by a 21-year-old in MLB history. His historic sixth walk-off home run against the Mets was just the latest achievement in a season that could culminate in a Rookie of the Year award.
Ha-Seong Kim's Injury Update
Padres' shortstop Ha-Seong Kim underwent an MRI Monday after sustaining a shoulder injury. Kim rejoined the Padres in St. Louis Tuesday and played catch before the game, but manager Mike Shildt has yet to provide a timeline for Kim's recovery.
Padres Stars Set for Rehab Assignments
Yu Darvish and Fernando Tatis Jr., two of the Padres' star players, are nearing minor league rehab assignments — a critical step toward their return to the major league roster. Both appear on track to rejoin the team in September.
Padres Near a Historic Low in Player Usage
The Padres are on pace to use fewer position players used in any season since 1985. It's a rare achievement in a game in which success is increasingly defined by injuries and player availability. San Diego has been fortunate in both regards on the position player side.

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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