Johnson scores two TDs, Locker struggles in start

Chris Johnson ran for two touchdowns and Rob Bironas kicked three field goals as the Tennessee Titans capitalized on some early turnovers to earn a 30-7 preseason victory over the Tampa Bay Buccaneers on Friday night at Tampa, Fla.

The Titans got an early boost from their defense, capitalizing on two first-half turnovers by the Bucs.

Tennessee second-year quarterback Jake Locker didn't have an ideal outing in his first NFL start, completing 4 of 11 for 21 yards and an interception.

Vikings 36, Bills 14: At Minneapolis, Christian Ponder threw a first-quarter touchdown pass in a sharp three-possession appearance and Minnesota breezed past Buffalo, which saw a decent performance from backup quarterback candidate Vince Young.

Lions 27, Ravens 12: Matthew Stafford threw two touchdown passes, Calvin Johnson had five catches for 111 yards and a score, and Detroit won at Baltimore.

Stafford went 12 for 17 for 184 yards in four possessions. He failed to produce a score in three drives last week against Cleveland, then came up empty in his first two series against Baltimore before guiding touchdown drives of 93 and 70 yards.

Panthers 23, Dolphins 17: At Charlotte, N.C., Cam Newton outplayed rookie Ryan Tannehill in a matchup of young quarterbacks as Carolina beat Miami.

Newton looked extremely sharp, completing 8 of 11 passes for 119 yards and a touchdown as the Panthers jumped all over the injury-depleted Dolphins defense early, scoring on their first three possessions to take a 17-0 lead.

Jaguars 27, Saints 24: Jordan Palmer hit Kevin Elliott with an 11-yard touchdown pass on fourth down with 13 seconds left, lifting Jacksonville at New Orleans.

Jacksonville saw continued progress from second-year quarterback Blaine Gabbert, who outperformed Drew Brees of the Saints during the first half.

Cardinals 31, Raiders 27: At Glendale, Ariz., John Skelton made a brief appearance in his battle with Kevin Kolb for Arizona's starting quarterback job, just long enough to throw the first touchdown pass for either player this preseason.

Skelton's 3-yard toss to a wide open Anthony Sherman was part of a 17-point second quarter by Arizona, and the Cardinals beat Oakland.