Weisselberg, who is 75, was expected to be sent to New York's notorious Rikers Island jail.

The Trump Organization's former chief financial officer pleaded guilty last August to all 15 counts he faced in an agreement with prosecutors... admitting that from 2005 to 2017 he and other executives received bonuses and perks that fraudulently saved the company and themselves money.

Weisselberg also admitted to evading taxes, and has paid about $2 million in taxes, penalties and interest as part of his punishment.

Defense Attorney Nicholas Gravante:

"He deeply regrets the lapse in judgment that resulted in his conviction, and he regrets it most because of the pain it has caused his loving wife, his sons and wonderful grandchildren. // Mr. Weisselberg also regrets the harm his actions have caused to the Trump Organization and members of the Trump family. He is grateful to them for their continued support throughout this difficult chapter of his life."

Weisselberg joins a growing number of former Trump associates who have faced jail time, including:

Michael Cohen - Trump's longtime personal lawyer - who was sentenced to three and a half years in prison for orchestrating 'hush money' payments.

Paul Manafort, Trump's former campaign chairman, was sentenced to seven-and-a-half years for tax and bank fraud. He is now serving his sentence at home

Trump pardoned longtime friend and advisor Roger Stone days before his sentence was set to begin, convicted of lying under oath to lawmakers investigating Russian interference in the 2016 U.S. election.

And Steve Bannon - yet another Trump advisor - was convicted of contempt of Congress and sentenced to four months, but has been allowed to put the jail time off while he appeals the ruling.

Weisselberg, once one of Trump's closest lieutenants, testified against the company in a separate trial that resulted in the conviction of the Trump Organization for tax fraud. But he never turned on Trump himself.

The company is scheduled to be sentenced later this week.