With a resume that spans more than 40 years as an industry leader in the field of sports journalism, Jackie MacMullan will put a bow on what has been an influential 10-year run at ESPN.

MacMullan made the announcement through ESPN on Wednesday.

MacMullan has probably been best known for her work on the popular show “Around the Horn” but she was also a regular on “SportsCenter,” “Outside the Lines,” and “The Jump.”

She was also well known for her years at The Boston Globe and as one of the first women to be a true NBA insider.

“I feel fortunate to have collaborated with so many incredibly talented people during my 10-plus years at ESPN,” said MacMullan of her decision. “Sometimes you just know when you’re ready to dial it back, and this is the right time for me. I’m grateful for the memories, but especially for the friends I’ve made along the way. Thank you to my ESPN colleagues for all of your support.”

Said Cristina Daglas, ESPN senior deputy editor, “Jackie is a trailblazer not because she was one of the first women covering sports or the NBA. Rather, Jackie is a trailblazer because people talked about her without mentioning sex or gender. It was about the work, an incredible catalogue of work, that has appeared on every ESPN platform.

“Simply put, Jackie is one of the greatest journalists ESPN has ever seen. And she did it all while providing mentorship to both editors and writers, ensuring whether she meant to or not, that pieces of her will remain here long after she exits.”

MacMullan’s final appearance for ESPN will be Tuesday, August 31, on Around The Horn at 5 p.m.