From the Article:

"Dr. Lawrence Gerard Nassar, 53, of Holt, Michigan pleaded guilty pursuant to a plea agreement to the three federal criminal charges pending against him, Acting U.S. Attorney Andrew Birge announced today. Nassar pleaded guilty to receiving child pornography in 2004, possessing child pornography from 2003 to 2016, and destroying and concealing evidence in 2016 when he believed correctly that ongoing investigation by law enforcement would reveal his child-pornography activities. Nassar faces a minimum of five years and a combined maximum of 60 years in prison. Nassar agreed not to oppose a number of sentencing-guideline factors that result in an advisory sentencing range of at least 262 to 327 months (approximately 22-27 years) in prison. Under federal law, the advisory range is the starting point for the court’s determination of an appropriate sentence. While Nassar may pursue a below-guideline sentence, the government remains free to pursue a sentence of up to 60 years."

The article says his sentence-length remains To Be Determined. Let's hope he gets life in prison, though unfortunately I doubt he will.