Pete Alonso's first-round matchup for 2021 Home Run Derby setAlonso will look to go back-to-back7/8/2021, 3:39 AMSam EversSNY ContributorJun 28, 2021; Washington, District of Columbia, USA; New York Mets first baseman Pete Alonso (20) hits a two run home run against the Washington Nationals in the eighth inning at Nationals Park. / Geoff Burke-USA TODAY Sports