TENNIS icon Boris Becker has opened up on his harrowing time behind bars.

The German, who once had a whopping net worth of £38MILLION , was declared bankrupt in 2017.

Becker , 57, was sentenced to two-and-a-half years behind bars for hiding assets and a loan from his numerous creditors.

He spent a combined eight months behind bars in stints at HMP Wandsworth and Huntercombe before being deported from the UK .

The monotony of being banged up did a number on the physical and mental health of Becker - who leaned heavily on his wife Lilian de Carvalho Monteiro to get him through.

He told Suddeutsche Zeitung : "This endlessness eats away at your soul and boils your mind.

"You quickly realise that prisons are actually controlled by prisoners.

"Talking to my wife on the phone was

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