Marco Andretti adorably celebrates his daughter's 1-month milestone, affectionately named "The Milk Monster"

Former IndyCar driver and NASCAR Truck Series driver Marco Andretti celebrated his baby girl Miura's one-month birth anniversary with an adorable social media post, playfully calling her his "milk monster."

The third-generation Andretti family racer and his girlfriend, Billie Jo Powers, welcomed their daughter, Miura Micah Andretti, into the world on September 17. Miura's birth brought immense joy to racing legend and former F1 champion Mario Andretti, who proudly took on the title of great-granddad, as well as to Michael Andretti, who became a grandfather.

One month after Miura's birth, Marco shared an adorable post on X celebrating his daughter's milestone with a cute picture, describing her as a "milk monster". On October 17, the 37-year-old dad wrote on X:

"The Milk Monster is 1 month today. 😁"

One week ago, the first-time dad wrote on X that three weeks had flown by since his daughter's birth, stating:

"Hanging with Miura aka Munchkin butt. That 3 weeks felt like 3 minutes!"

Marco Andretti stepped away from full-time IndyCar racing after the 2020 season but continues to participate in the Indy 500. This year, he finished 25th in the 108th Running of the Indianapolis 500.

Andretti has made several NASCAR Truck Series starts in the #04 Roper Racing Chevy this year, achieving a best finish of 25th at Indianapolis Raceway Park. He also made his ARCA Menards debut this season, driving the #17 Cook Racing Technologies Chevy, where he secured a best finish of fifth at Mid-Ohio.

The new dad will return to action in the Truck Series at Homestead on October 26 and in the season finale at Phoenix on November 8.

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Marco Andretti shares a wholesome family portrait including four generations

Following Miura's birth, Marco Andretti shared a family portrait featuring his daughter, his grandfather Mario, and his father Michael. He signaled the arrival of the fourth-generation Andretti racer in their family. The caption on his X post shared on October 14, 2024, read:

"Gen 4 🏁"

Mario Andretti is a racing legend whose illustrious career spanned four decades, during which he won the highest accolades across multiple racing disciplines. The 1978 F1 champion is also a four-time IndyCar champion and the 1969 Indy 500 winner. Additionally, he secured the 1967 Daytona 500 victory with Holman Moody.

Michael Andretti is an IndyCar champion and a former F1 racer. The founder and owner of Andretti Global had recently announced his decision to step down as the leader of the global racing operation.

Following in the footsteps of his father and grandfather, Marco Andretti had a 15-year career in IndyCar, driving for his family-owned team and winning two races. He is also the 2022 SRX champion and continues to compete in the NASCAR Truck Series and ARCA Menards Series.