CINCINNATI -- One way for San Francisco 49ers quarterback Jimmy Garoppolo to knock the rust off from last year's torn ACL is to throw to wide-open receivers. And they don't get much more open than Niners wideout Marquise Goodwin on the Niners' first offensive possession Sunday in Cincinnati.

On the fourth play of the Niners' opening drive, coach Kyle Shanahan dialed up a play that left Goodwin all alone on the left side for an easy 38-yard touchdown pass from Garoppolo. According to NFL Next Gen Stats, Goodwin had a whopping 13.2 yards of separation on the play, the most open a receiver has been on a score so far this season and the most open touchdown for a 49er in a game since 2016.

Blown coverage by the Bengals on the Goodwin touchdown.



What was supposed to happen/who was supposed to cover Goodwin? I have no idea.



Animation via @NextGenStats pic.twitter.com/Az3SJ7VW5i — Seth Walder (@SethWalder) September 15, 2019

The design of the play called for play action with Garoppolo rolling to his right as Goodwin came across the formation and leaked out the left side. As the coverage followed the ball to the right, Goodwin found himself with nothing but field turf in front of him as he hauled in the pass and waltzed into the end zone to stake San Francisco to an early 7-0 lead.