Christian Pulisic lifts shot past Benfica goalkeeper Ederson Moraes in the 59th minute at Signal Iduna Park in Dortmund. (Friedemann Vogel/EPA)

Christian Pulisic started. Christian Pulisic delivered.

The American teenager from Hershey, Pa., assisted on the first goal and scored the pivotal second Wednesday as Borussia Dortmund roared to a 4-0 victory over visiting Benfica for a 4-1 aggregate margin the UEFA Champions League round of 16. The goal came four days after he came on as a substitute and scored against Bayer Leverkusen in the Bundesliga.

Two weeks ahead of a likely starting assignment in the U.S. World Cup qualifier against Honduras, the 18-year-old midfielder filled the void left by injured Marco Reus. On a fourth-minute corner kick, he flicked the ball across the six-yard box to Pierre-Emerick Aubameyang for the first of three goals by the Gabonese striker.

In the 59th minute, Pulisic made a well-timed run into the box and latched onto Lukasz Piszczek’s through ball before one-timing it over goalkeeper Ederson Moraes for the first Champions League goal of his career and fourth of the 2016-17 campaign.

“It was my first-ever Champions League goal and probably the most important one I’ve scored to date” at Dortmund, Pulisic said. “It was an incredible, amazing feeling.”

Pulisic has appeared in all eight BVB Champions League matches, with six starts.

Also Wednesday, American Geoff Cameron continued his comeback from a four-month injury layoff by playing 90 minutes in defensive midfield for the second time in a five-day span as Stoke City held host Manchester City to a 0-0 Premier League draw.

Pulisic highlight package: