Sports Brett Favre, citing CTE risk, says kids shouldn’t play tackle football until they are 14 August 17, 2021 Scooby Axson, USA TODAY Comments Off on Brett Favre, citing CTE risk, says kids shouldn’t play tackle football until they are 14 In a new PSA, Hall of Famer Brett Favre cites CTE risk as he urges parents not to let children play tackle football until they are 14 years old.