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Illustration: Aïda Amer/Axios

Major changes could be coming to college football's grueling preseason in an attempt to create a safer environment for athletes.

Driving the news: In response to a recent study that found that most concussions occur during practice, the Football Oversight Committee plans to recommend new rules for fall camp.

Possible changes, per SI...

  • Reduce full-padded practices (from 21 to eight).
  • Reduce scrimmages (from 3.5 to two).
  • Abolish collision exercises (like the "Oklahoma Drill").

By the numbers: The study reviewed 68 concussions in Division I college football from 2015 to 2019, finding that 72% happened outside of games.

  • Preseason training was deemed the most deleterious, comprising just one-fifth of the time studied but nearly half of the concussions.

The big picture: This is the latest attempt to dial back the intensity of fall camp. In 2017, the NCAA banned two-a-days, and in 2018, preseason practices were reduced from 29 to 25.

The last word: "Concussions in games are inevitable, but concussions in practice are preventable," write concussion experts Robert C. Cantu and Christopher J. Nowinski.

Go deeper

Exclusive: Houston mayor to lead Black mayors group

Houston Mayor Sylvester Turner speaks during a private funeral for George Floyd. Photo: Godofredo A. Vásquez/Pool/Getty Images

The mayor of the city where George Floyd was raised is taking over a group that represents 500 Black mayors in the U.S. amid national pressure to revamp police departments.

Why it matters: Houston Mayor Sylvester Turner will become the new president of the African American Mayors Association as municipalities across the country examine police reforms and deal with the economic fallout from the pandemic.

Delivery industry sees biggest monthly job losses in more than 20 years

Data: U.S. Bureau of Labor Statistics; Chart: Axios Visuals

The pandemic's biggest job winner is losing steam.

Driving the news: People who deliver packages to businesses and homes — classified as "couriers and messengers" by the Labor Department — saw the industry's biggest monthly job losses in more than 20 years in April.

FDA authorizes Pfizer COVID vaccine for 12- to 15-year-olds

Photo: Gabby Jones/Bloomberg via Getty Images

The Food and Drug Administration authorized the emergency use of the Pfizer-BioNTech coronavirus vaccine for 12- to 15-year-old adolescents, the agency announced on Monday.

Why it matters: The emergency authorization marks a critical milestone in the push to get more Americans vaccinated and fully reopen schools for in-person learning this fall.