University of Las Vegas defensive lineman Ryan Keeler died Monday, sources told the Las Vegas Review-Journal. 

A cause of death has yet to be released. 

Keeler was a sophomore at the university after transferring from Rutgers prior to last season.

The 6-foot-6, 275-pound Keeler played in two games for the Rebels, totaling eight tackles and one sack in those contests. 

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Current and former UNLV players offered their condolences to Keeler’s family via social media on Monday night, including running back Aidan Robbins. 

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"Long Live 47," he wrote on his Instagram story. 

Robbins added another that said: "God rest your beautiful soul… love you 4L [for life] boy."

Marcus Arroyo was head coach for the Rebels last season before being fired after posting a 5-7 record, which brought his total to 7-23 in his three seasons there. During the season, he touted Keeler for his versatility on the field. 

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"We’re getting a chance to see some guys," Arroyo said, per the Las Vegas Review-Journal. "It’s not what you’d like to do, obviously, in a situation where you have all your guys rolling, but it was good to see Ryan get in there and mix it up."

Keeler was a product of Nazareth Academy in Chicago during his high school days.