MLB single-season HR record set in 2017
Alex Gordon's homer breaks major league record for long balls in single season
Most home runs in a season: 2017 exceeds record set in 2000 - Sports Illustrated
Alex Gordon hits MLB's record-setting 5,694th HR of season
Prospectus Feature: MLB Commission Confirms That The Baseball Has Changed - Baseball ProspectusBaseball Prospectus
MLB sets single-season home run record
No juiced ball for the Arizona Diamondbacks and unbroken franchise HR record
Going, going gone! How MLB smashed single-season HR record - ESPN
Alex Gordon hits MLB's record-setting 5,694th home run of season
Kansas City Royals: Alex Gordon Sets MLB Record with Solo Home Run
Giancarlo Stanton Hits 50th Home Run in Marlins' Win - Stadium