Chapter 89+

Chapter 89+ is a bonus chapter of World Trigger that appeared in Jump Plus, and was later Released in Issue #8 of 2015, before being put in Volume 11.

Summary
Tachikawa and Izumi are doing night patrol when Tachikawa learns that Azuma is doing commentary for a Rank War Match. He rushes to Taketomi, who is known to secretly record the commentaries of matches since they aren't available with logs.

Trivia

 * This is currently the only extra chapter adapted into the anime.