You see Trenni Casey most nights talking sports on "Early Edition with Trenni" on NBC Sports Boston, But, for the last 6 months, she has been spending her mornings, and basically any time outside of the studio, training for her leg of "MS Run the US." The relay is America's first and only 3,260 mile ultra relay run to raise awareness and funds for MS research and aid those living with disabilities from the disease. Trenni's relay leg is just about 160 miles across her home state of Wisconsin. That's over a marathon a day! Today we dive in to:

• Why Trenni signed up to be part of the relay and set a goal of $67,000
• How her Aunt Sandy's diagnosis redirected her life and how organizations like MS run the US can be critical resources for those living with MS and their families
• What training has looked like -- the build, miles/week, fueling, nutrition, mobility, etc
• Her strategy to log the miles across the week
• MS Rock & Run Fest at the finish line of Trenni's segment in Wisconsin
• Biggest lesson she's learned about herself through training

Follow along with Trenni's run & donate: @trenninbcs

Learn more about MS Run The US: msruntheus.org

Follow along with Hannah on social: @_hannah.donnelly

To watch the episodes: NBC Sports Boston YouTube