MLB Star Pete Alonso and Wife Haley Celebrate Birth of their…

Pete Alonso, the renowned first baseman for the New York Mets, and his wife Haley recently announced the birth of their first child together. They shared the joyful news via an Instagram post on October 9, revealing their son’s birth took place on September 21, 2025.

The couple shared two cute pictures of their newborn. In the Instagram post caption, Haley wrote, “09/21/25 🥰 the night we welcomed our son into the world.” The Alonsos first broke the news of their pregnancy on April 5, 2025, where they were seen cherishing a sonogram image and expressed their excitement about becoming parents. The fact that they were expecting a boy was revealed later in July.

Pete and Haley’s journey to becoming parents traces back to their long-standing relationship. The duo met in 2015 when Pete was playing in the Cape Cod League and Haley was a Michigan State University student. After a few years of long-distance dating, they got engaged in 2018 and finally made it down the aisle in 2021 in Tampa, Florida.

Several fans and fellow players congratulated the couple when they revealed their pregnancy news in April. Haley gave another pregnancy update in July, when Pete was representing the Mets in the 2025 MLB All-Star Game. Her Instagram post from the event detailed the challenges of being pregnant in the Atlanta summer weather while expressing anticipation for the arrival of their little one.

Having entered a new chapter of their life, Pete and Haley publicly announced the birth of their son on October 9, 2025. The Instagram post included two pictures of their newborn and a heartwarming caption on his arrival. The Alonsos, especially Pete who is a five-time MLB All-Star, often share glimpses of their personal life off the field. Pete, affectionately known as “Polar Bear” by his fans, has always spoken fondly of his family and wife.

Following the announcement of the birth, well-wishes poured in from followers and fellow teammates. Fans appreciated the news, dubbing it the “sweetest moment of the season.”