LAS VEGAS (AP) Authorities in Las Vegas are investigating the death of a 20-year-old UNLV football player from Chicago who was found unresponsive in bed in a studio apartment, officials said Tuesday.

The Clark County coroner said a cause and manner of Rebels defensive lineman Ryan Keeler's death was pending following his death on Monday. Medical examiner blood toxicology test results can take several weeks.

Las Vegas police Officer Robert Wicks said an investigation of Keeler's unexpected death remained open pending coroner and detective findings. Wicks said the call was initially handled as a medical call.