Former NFL defensive back Will Allen was sentenced to six years in prison Wednesday for his role in a Ponzi scheme, reports Law360.

The $37 million Ponzi scheme targeted investors with fake loans to pro athletes. Allen plead guilty to four counts of wire fraud out of 23 charges levied against him a few months ago (more on that here).

Several athletes reportedly invested in the scheme, though they were not named in the case.

Allen played in the league from 2001-2012 with the New York Giants, Miami Dolphins and New England Patriots. He is estimated to have earned $26.1 million over his career.

The former defensive back was a first-round pick of the Giants out of Syracuse. He recorded over 500 tackles and 15 interceptions during his lengthy career.