BOSTON (AP) — After his rapid rise to the majors, Jackson Holliday was given a particularly meaningful number with the Baltimore Orioles.

Baseball’s top-ranked prospect made his big league debut Wednesday night at Fenway Park, starting at second base and batting ninth against the Boston Red Sox. He struck out swinging his first time up.

The 20-year-old infielder, selected No. 1 overall in the 2022 amateur draft out of high school in Oklahoma, is a son of Matt Holliday, a seven-time All-Star and the 2007 NL batting champion.

“Nervous? I mean, a little bit. Not too bad,” Jackson Holliday said before the game. “I’m not as nervous as I thought I would be. I’m more excited. Kind of changed the mind frame from nervous to excitement. But yeah, I’m really excited.

“I got a taste a little bit during spring training. Obviously, this will be different now during the season, but I felt like I was able to hold my own and definitely looking forward to tonight.”

Holliday will wear No. 7 for Baltimore. His father wore that number during seven seasons with the St. Louis Cardinals and one with the Colorado Rockies. But it hadn’t been worn by a member of the Orioles since former manager Cal Ripken Sr. was still coaching in 1992.

One of his sons, Billy Ripken, was the previous Baltimore player to wear that number, in 1988. The Ripken family, Orioles royalty, gave its blessing to the young Holliday.

“Our family is thrilled that @J_Holliday7 will be wearing dad’s #7,” Hall of Fame shortstop Cal Ripken Jr. posted on the social platform X. “Excited to watch him play!”

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