MIAMI – Ryan Freel, a former Major League Baseball player known for his fearless play but whose career was cut short after eight seasons by a series of head and other injuries, was found dead Saturday in Jacksonville, Fla., according to the Jacksonville Sheriff’s Office.

Freel, who was 36, died of what appeared to be a self-inflicted shotgun wound, sheriff’s office spokesman Shannon Hartley wrote in an email Sunday. The medical examiner will make the final determination of the cause of death.

“RIP Ryan Freel!! Great teammate, great guy,n loved his family!” former Cincinnati Reds teammate Sean Casey tweeted. “Such a sad day today with his passing!Awful news!Prayers are with his family!”