The NCAA announced this week it is opening an investigation into the Michigan State athletic department.

But according to a report Friday night by The Athletic, NCAA president Mark Emmert was alerted in 2010 about dozens of reported sexual assault allegations against Michigan State athletes.

Emmert became NCAA president in 2010, and received a letter dated Nov. 17, 2010, from Kathy Redmond, founder of the National Coalition Against Violent Athletes. Redmond provided a copy of the letter to The Athletic.

The fourth paragraph read:

"For example, despite recent reports of sexual violence involving two Michigan State University (MSU) basketball players, one of which admitted to raping the victim, neither man was charged criminally or even disciplined by the school. An earlier report of similar violence involving two other MSU basketball players also went un-redressed. In the past two years alone, 37 reports of sexual assault by MSU athletes have been reported, but not one disciplinary sanction was imposed by school officials against any of the men involved."

In an interview with The Athletic, Redmond said she found Emmert, 65, receptive to her concerns, meeting with her for 90 minutes.

“Mark Emmert was brand new, and he’d initially said, ‘One sexual assault is one too many,’ ” Redmond told The Athletic. “As soon as I heard that, I thought I might have an ally.”

Emmert declined comment to The Athletic.

On Wednesday, MSU president Lou Anna Simon resigned, and the Board of Trustees accepted her resignation Friday, in the wake of the Larry Nassar scandal. Also Friday, MSU athletic director Mark Hollis announced his resignation, saying he would cooperate with investigations by the Michigan attorney general and the NCAA.

Later Friday, ESPN published a report by "Outside the Lines" suggesting a wide-ranging band of secrecy at Michigan State and in the athletic department, even leveling charges against football coach Mark Dantonio and basketball coach Tom Izzo.

Before Friday night's men's basketball game, Dantonio issued a statement denying he handled any sexual assault claim improperly.

Dantonio said he has no plans to resign, and Izzo told Fox Sports he also has no plans to resign.