VIDEO: John Ross shows off speed but fumbles opportunity away

Cincinnati Bengals wide receiver John Ross leaves the field in the first half of a preseason NFL football game against the Indianapolis Colts in Indianapolis, Thursday, Aug. 31, 2017. (AP Photo/Michael Conroy)

Cincinnati Bengals wide receiver John Ross leaves the field in the first half of a preseason NFL football game against the Indianapolis Colts in Indianapolis, Thursday, Aug. 31, 2017. (AP Photo/Michael Conroy)

Bengals fans got a glance at John Ross’ potential, but also his first major mistake.

Ross took an end-around, blazing through the Texans defense. Problem is, he fumbled the ball, and Jadeveon Clowney ran it back into Bengals territory, leading to a field goal that put Houston up 3-0.