Shiba (Kusagakure)

Tsuba was a Chunin from Kusagakure in the Naruto series.

Chunin Exams; Third Stage
He and Midori was the personal guards of the Grass Daimyo. He and Midori were ordered right before the last match to make Gaara lose to Sasuke Uchiha, making their daimyo win a bet with the Waterfall Daimyo.

When Gaara did not respond to their threats, Tsuba pulled out a Kunai, intending to inflict some injuries on Gaara, so he could not participate. Unfortunately for him, Gaara used his sand to capture him and crush him to death, to the point of liquefying his corpse completely. Tsuba died right after.

Post-Chunin Exams
Tsuba appears in the backround of the OVA; Finally A Clash: Jonin VS Genin, behind Sasuke, when he trash-talks Naruto.