Astros sign first-base prospect Jon Singleton to five-year deal, call him up to majors - Sports Illustrated
Jon Singleton (baseball) - Wikipedia
Jon Singleton - MLB News, Rumors, & Updates
Astros: Jon Singleton opens up on ending lengthy home-run drought
Singleton homers twice in Verlander's 500th start to lead Astros over Angels 11-3 - The San Diego Union-Tribune
Singleton homers twice in Verlander's 500th start to lead Astros over Angels 11-3 - ABC News
Astros' Jon Singleton homers for first time since 2015, then homers again
Singleton to be called up by Astros, after last playing in majors for Houston in 2015 - The San Diego Union-Tribune
Astros' Jon Singleton went 8 years between home runs in his incredible comeback story