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Akon is playing hard ball with his estranged wife in their divorce -- the rapper doesn't want to give her a dime in spousal support!

According to new court docs obtained by TMZ ... Akon checked the box to terminate spousal support for Tomeka — his wife of 29 years — after she had requested it in her divorce petition filed in September . Instagram / @mekas.world

Interestingly, Tomeka asked the court not to award any spousal support to Akon so it seems both want to protect heir finances.

In Akon's response, filed Friday in L.A. Superior Court, he also requested joint physical custody of the 17-year-old child he shares with Tomeka. Gallery Launch Gallery Getty

Tomeka, on the other hand, asked for joint legal custody of their chil

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