On August 7, Timu ya Wananchi parted ways with Yondani alongside Juma Abdul.
The Jangwani Street-based side confirmed through a statement they had failed to agree on a new contract with the players.
"The management of [Yanga SC] has announced the exit of their star players Kelvin Yondani and Juma Abdul after failure to reach an agreement regarding their contracts," the 27-time league champions confirmed.
The move ended Yondani's stay at the club he joined in 2012 from bitter rivals Simba SC. He helped Wananchi to win four Tanzania Mainland League titles.
Meanwhile, Lukwaro has insisted defender Iddy Mobby is still contracted to Polisi Tanzania and has not left. The player has been linked with a move to reigning champions Simba SC or their bitter rivals Young Africans.