Sold at Auction: Pete Alonso autographed New York Mets jersey (MLB Authentication).

Leave no doubt that are you the number one New York Mets fan by picking up this Pete Alonso autographed Blue Nike Authentic Jersey. Alonso made his league debut in 2019 and it didn't take long for him to make a serious impact. He broke the MLB record for single-season home runs by a rookie with 53, which earned him All-Star, All-MLB First Team and NL Rookie of the Year honors.

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