NASHVILLE, Tenn. — The Tennessee Titans are off to a perfect — and historic — start.

Rookie Chris Johnson scored two touchdowns and the defense forced four turnovers that the Titans turned into 21 points as Tennessee beat the Minnesota Vikings 30-17 today. The Titans improved to 4-0 for the first time in franchise history.

Not even dating back to their AFL start in Houston as the Oilers had this team started a season by winning more than three straight. But in their 10th season as the relocated Titans, they also have won an NFL-best seven straight regular-season games and had the crowd chanting "4-and-0" as the final seconds ticked off.

Minnesota (1-3), which came in hoping to start its own winning streak, outgained Tennessee 333-275. The Titans had allowed an NFL-fewest 29 points, then gave up a season-high 17 to the Vikings.

But the Titans also came up with four sacks to go with the turnovers.

In a game featuring two of the NFL's top young running backs in Minnesota's Adrian Peterson and Tennessee's Johnson, it was two old quarterbacks — Gus Frerotte and Kerry Collins — who tried to take control against two stingy defenses against the run. Collins had much more help from his Titans.

Albert Haynesworth sacked Frerotte twice, and Nick Harper intercepted a Frerotte pass with 3:46 left after the Vikings pulled within 23-17 on Peterson's second touchdown run. Frerotte hurt his hand on that play and left the game.

Johnson then scored his second TD on a 6-yard run, and the Titans sacked Tarvaris Jackson twice to seal the victory.

Frerotte made it interesting as he drove the Vikings downfield to set up Peterson's second TD. He drew an unnecessary roughness penalty on Titans end Kyle Vanden Bosch after overthrowing on third-and-goal, and Peterson scored on the next play to pull Minnesota within 23-17 with 6 minutes left.

The Titans, who gained only 70 yards in the second half, stalled again. Their punt was downed at the 2, forcing Frerotte to throw from his end zone. Harper picked him off on third down to set up Johnson's 6-yard TD run.

Peterson finished with 80 yards on 18 carries after coming into the game ranked second in the NFL with 340 yards.

Minnesota got five sacks in last week's victory over Carolina. The Vikings hit Collins but never sacked him as the 14-year veteran completed passes to six different Titans for 199 yards.

The Titans opened the game by scoring on their first drive and never trailed after dominating most of the first quarter. They outgained Minnesota 102-9.

Johnson ran in for a 1-yard TD that was his first score rushing to make it 10-0 in the first quarter. LenDale White also ran in from a yard, giving him a touchdown run in four straight games. Rob Bironas added field goals of 20, 32 and 49 yards.

Peterson broke loose for a 28-yard touchdown run at the beginning of the second quarter to pull the Vikings within 10-7. That was as close as they would get. Ryan Longwell had a chance at a 48-yarder just before halftime that clanked off the right upright.