It was a tight opening 10 minutes with both teams probing but keeping it tight. However, Yanga were incredibly close to opening the scoring in the 37th minute.
The champions nearly went in front inside the opening 3 minutes, but were denied by Mwadui backline which all time looked well organised at the back. Awesu and Seseme then threatened to break the deadlock for Mwadui at the other end.
Young Africans barely tested stand-in goalkeeper Arnold Massawe - who was once again standing between the sticks for Mwadui FC - but showed their resilient side to shut out the reigning champions in Dar es salaam.
Yanga had their own chance to take the lead in the 37th minute. From a corner, Ajibu got his foot on the ball but saw his goal-bound effort saved by Massawe.
After the break, Ajibu curled in a free-kick which Arnold Massawe was able to claw away from danger. Moments later Nonga saw a clever back-heel go out and it was a goal kick as the visitors pushed for the opener.
Just after the hour mark, Raphael Daudi played in substitute Said Juma Makapu who drifted through the penalty area before poking the ball towards goal, only for Massawe to parry the ball away with a good one-handed save.
Saidi Juma went incredibly close to breaking the deadlock in injury time, crashing a header towards goal from Ajibu's cross, he could have made a story different for Yanga but he was not keen enough and he missed the golden chance.
The Jangwani technical bench was acused of starting unfit players in their lineup which forced them to a stalemate against Mwadui from Shinyanga in Ligi Kuu clash.
Young Africans started with Amissi Tambwe in their attacking line who was recently suffering from malaria while Nkomola na Saidi Mussa who were fit for the first eleven started from the bench.
Raphael's introduction galvanised one final push, both from his team-mates and the crowd, yet Yanga could not land the knockout punch as they failed to score in the league once again.