Boris Becker, a former Wimbledon champion, was sentenced to two and a half years in prison for concealing £2.5 million in assets and loans in order to avoid paying debts.
Becker, 54, was found guilty of four charges by a jury under the Insolvency Act.
He was cleared on 20 counts.
Nicknamed “Boom Boom” Becker for his ferocious serve, he won Wimbledon for a third time in 1989.
Becker turned to commentary after his retirement, landing a high-profile role on the BBC, but he returned to the court in 2013 as the coach of Djokovic, helping the Serb win six more Grand Slam trophies before the pair parted ways in 2016.