Astros demote first baseman Jon Singleton to Triple-A - NBC Sports
Astros' Jon Singleton hits first HRs in majors since 2015 - ESPN
Houston Astros disappointment Jon Singleton signs with Brewers
Astros sign top prospect Jonathan Singleton to five-year contract
Brewers call up former prospect Jon Singleton, who hasn't been in MLB since 2015
Jon Singleton (baseball) - Wikipedia
Jon Singleton hits 1st HR in 8 years, then does it again in Astros' rout
Thoughts on Jonathan Singleton, suspended 100 games for his third positive drug test - MLB Daily Dish
Jon Singleton homers for first since 2015 in two-dinger night for Astros
Houston Astros' Jon Singleton makes a return for the ages