Associated Press

Nearly two-thirds of players who were involved in head collisions during the 2014 World Cup weren't adequately monitored by qualified health professionals to determine if they should have continued playing, according to an extensive video study published today in the Journal of the American Medical Association.

Why it matters: Concussions — from colliding with another player or repeatedly heading the ball — may structurally change the brain and have long-term effects on brain health and cognition.

The study: Trained reviewers looked at every, single event that involved head contact during all 64 World Cup matches for obvious signs of concussion like disorientation, temporary unconsciousness, or seizure-like movements.

During the 64 World Cup games, 61 players had 81 head collisions in 72 separate events. Health care personnel on the sideline assessed the player in only 15% of the cases. In the remaining instances, 45 players were assessed on the field by other players, referee or personnel on the field, while 21 players received no assessment at all. Shockingly, for players who had three or more signs of an obvious concussion, 86% returned to play during the same game.

The rules: International protocols from the sport's governing bodies say that players who show any features of a head concussion during a World Cup match should be immediately withdrawn and assessed by sideline health care personnel. The study shows that these protocols were largely ignored during the 2014 World Cup.

Go deeper

Dion Rabouin, author of Markets
34 mins ago - Economy & Business

Investors have nowhere to hide

Photo: Jeenah Moon/Getty Images

The massive losses in oil prices and U.S. and European equities were not countered by gains in traditional safe-haven assets on Wednesday.

Why it matters: The unusual movement in typical hedging tools like bonds, precious metals and currencies means they are not providing investors an asset that will appreciate in the event of a major equity selloff.

Kendall Baker, author of Sports
38 mins ago - Sports

A look inside sports owners' political donations

Data: ESPN/FiveThirtyEight; Chart: Axios Visuals

Sports team owners in the four largest North American leagues (NFL, NBA, MLB, NHL) have donated over $46 million in federal elections since 2015, according to research conducted by ESPN and FiveThirtyEight.

By the numbers: Over the past three elections, $35.7 million of that money (77.4%) has gone to Republican campaigns and super PACs, compared to $10.4 million (22.6%) to Democrats.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Health: Large coronavirus outbreaks leading to high death rates — Coronavirus cases are at an all-time high ahead of Election Day — Fauci says U.S. may not return to normal until 2022
  2. Politics: Space Force's No. 2 general tests positive for coronavirus
  3. World: Taiwan reaches a record 200 days with no local coronavirus cases
  4. Europe faces "stronger and deadlier" wave France imposes lockdown Germany to close bars and restaurants for a month.
  5. Sports: Boston Marathon delayed MLB to investigate Dodgers player who joined celebration after positive COVID test.