Sam Ehlinger's younger brother -- Univ. of Texas linebacker Jake Ehlinger -- was found dead near campus on Thursday ... TMZ Sports has confirmed.
A spokesperson for the Austin Police Department tells us cops received a call at around 12:18 PM, and a short time later, found Jake's body just blocks away from the university.
The spokesperson did not reveal a cause of death or any other details surrounding the tragedy ... but did note the department is considering it all "non-suspicious."
Jake walked onto the Longhorns' team in 2019 -- joining up with his older brother, Sam, who was a STAR quarterback for UT for the previous few seasons.