ATLANTA — Atlanta’s Matt Ryan and Miami’s Ryan Tannehill showed how starting quarterbacks should handle preseason openers.

Each had only one possession. Each completed every pass attempt on long touchdown drives. Each then turned the game over to backups who never found the end zone.

After the strong opening drive by Ryan, Sean Renfree led two field-goal drives in the second half and the Falcons held off the Dolphins 16-10 in the preseason opener for both teams Friday night.

Tannehill was 6 of 6 for 62 yards, including a 6-yard touchdown pass to Brandon Gibson.

Ryan was just as strong, completing each of his seven attempts for 53 yards on Atlanta’s opening drive.

JAGUARS 16, BUCCANEERS 10: Blake Bortles was solid in his preseason debut, throwing for 117 yards and leading a second-half drive for a field goal to help Jacksonville beat visiting Tampa Bay.

The third overall pick in this year’s draft completed 7 of 11 passes, including a 31-yarder down the middle of the field to Mike Brown to set up a 26-yard field goal that gave the Jaguars a 10-3 lead late in the third quarter.

BILLS 20, PANTHERS 18: Anthony Dixon ran for a touchdown, and Dan Carpenter had a pair of field goals for Buffalo in a win at Charlotte, N.C.

EJ Manuel completed 9 of 13 passes for 96 yards, but the Bills struggled to cash in on scoring opportunities for the second straight game. Buffalo’s first-team offense reached Carolina territory on its first three possessions but managed just three points.

NOTES

JETS: Geno Smith: three points. Michael Vick: seven.

Quarterback controversy?

Nope. Not even close. OK, well, not yet.

“We’ll just let this thing play out,” Coach Rex Ryan said. “It’s our first preseason game. Obviously, we know we have two excellent quarterbacks.”

Smith led the Jets to a field goal in his two series with the starters Thursday night in a 13-10 victory over the Indianapolis Colts. Vick created a bit of a buzz by leading a touchdown drive with the first-team offense and showing he can still make plays with his legs.

While the Jets maintain the two are competing, it has been clear it’s Smith’s job to lose – and he did nothing to downgrade his spot on the depth chart. Smith was 4 of 6 for 33 yards – including a drive capped by a 51-yard field goal by Nick Folk – before giving way to Vick.

He also had an impressive Vick-like 10-yard scramble on a read-option.

DOLPHINS: Reshad Jones has become the second Miami player this summer to run afoul of the NFL policy on performance-enhancing substances.

Jones, a starting strong safety, was suspended for the first four games of the regular season. He said he took a supplement that caused the violation.

Defensive end Dion Jordan was suspended last month for the first four games after testing positive for a prohibited stimulant.

“I worked closely with the union to investigate what happened, and I learned that a supplement I took caused the positive test,” Jones said in a statement released by the Dolphins. “I deeply regret not investigating the supplement carefully before I took it, and I will never again take a supplement without having it checked. I am very sorry for the effect of my mistake on my teammates and coaches.”

Jones, a fifth-year pro, started every game the past two seasons and finished second on the team in tackles last year.

The suspension is without pay. Jones will be eligible to return to the active roster following the Dolphins’ Sept. 28 game against Oakland.

 Former New York Jets general manager Mike Tannenbaum has been hired by Miami as a consultant.