MIAMI GARDENS, Fla. – Atlanta rookie Michael Penix Jr. completed 9 of 16 passes for 104 yards in the Falcons’ 20-13 loss to the Miami Dolphins on Friday night in the preseason opener for both teams.

Penix, the former Washington star drafted eighth overall, started and played the first five drives. He connected with receiver Chris Blair on a 41-yard pass down the sideline midway through the first quarter for his longest completion.

“It was fun to be able to be out there competing with my brothers,” Penix said. “Playing the game since I was 5 years old. No nerves. No jitters. I was just ready to go.”

Penix directed two drives that ended in scores — Younghoe Koo’s 39-yard field goal and Carlos Washington’s 1-yard touchdown run. Taylor Heinicke replaced Penix with 6:40 remaining in the second quarter.

“There are some things I definitely want to get better,” Penix said. “I felt I executed the offense the best that I could. Just trying to get points on the board whenever I’m out there.”

Quarterback Tua Tagovailoa and receiver Tyreek Hill were among the veterans who weren’t in uniform for Miami. Tagovailoa signed a four-year extension, and Hill had his contract restructured during training camp.

“We had some defensive players play out of position because of some depth issues,” Dolphins coach Mike McDaniel said. “So it was good to see our guys get a win in front of the home fans.”

In addition to Penix’s first game, it was also the coaching debut for the Falcons’ Raheem Morris.

“We got a chance look at these guys go out and make some plays,” Morris said. “I saw many positive things.”