The decision is a blow to MLB's Oakland Athletics, who selected Murray ninth overall as an outfielder in the 2018 draft and gave him a $4.66-million signing bonus before allowing him to play one more college football season at Oklahoma.
Now, based on his decision to pursue professional football, Murray must return $1.29 million of the $1.5-million bonus he already received and forfeit the remaining $3.16 million that would be due March 1, according to ESPN's Jeff Passan.
Additionally, the A's will reportedly put Murray on the restricted list and retain his rights, but they won't receive a compensatory draft pick.
While there was always a risk Murray would choose football, A's general manager David Forst said the outfielder was simply too talented to pass on.
"We took the best athlete on the board and what we thought was the best baseball player on the board too. We don’t regret the pick at all," Forst said, according to MLB.com's Jane Lee.
Murray is projected to be an early-round selection in the NFL draft and will attend the scouting combine at the end of February.