The Houston Texans remained undefeated, beating the Tennessee Titans by a final score of 38-14.

The Texans had a +11.4 advantage in The Trench Counter, forcing three turnovers while committing zero. Houston had a +5 edge in Total Rushes/Completions.

The Texans knocked Jake Locker out of the game in the first quarter and went on to intercept Matt Hasselbeck twice that were both returned for touchdowns, largely negating Chris Johnson's 25 carries for 141 yards. J.J. Watt recorded two sacks while adding two more QB hits.

Matt Schaub went 20-for-28 for 202 yards and touchdowns to Owen Daniels and James Casey.

Arian Foster rushed 24 times for 86 yards and a touchdown.

Jake Locker re-injured his left should during the Tennessee Titans' 38-14 loss to the Texans in Week 4.

Locker was sacked by Glover Quin and grimmaced in pain as he hit the turf and lost the football.

Locker will have an MRI on the shoulder on Monday.

“It is sore, we just don’t know to what level,” Munchak said. “We need to decide what happened. And then we’ll make a decision on what’s best for the player. We’ll evaluate that when we get more information tomorrow.”

Locker suffered a separated left shoulder in the season opener against the Patriots.

The Tennessee Titans defeated the Detroit Lions by a final score of 44-41 in a wild overtime game that featured 46 total points in the fourth quarter and a Hail Mary catch by Titus Young.

The Titans had a 3.7 deficit in The Trench Counter, as they had 15 fewer first downs and though they did average 0.9 more yards per play. Detroit had a +48 edge in Total Rushes/Completions, as they ran 91 total plays compared to 61 by the Titans.

Locker went 29-for-42 for 378 yards and two touchdowns without an interception. Nate Washington caught three balls for 112 yards and a touchdown.

Chris Johnson, however, struggled again to get going as he rushed 14 times for 24 yards.

The Titans scored two touchdowns on special teams and a third on defense.

Matthew Stafford went 33-for-42 for 278 yards and a touchdown before leaving with an injury. The Lions settled for four Jason Hanson field goals as their drives stalled.

Shaun Hill threw for 172 yards on 10-for-13 passing and two touchdowns after coming in for Stafford in the fourth quarter.

Calvin Johnson caught 10 balls for 164 yards and a touchdown.

Mikel Leshoure established the running game for the Lions, carrying 26 times for 100 yards and a touchdown.

Chris Johnson expressed his unhappiness with the Tennessee Titans' offensive line when talking to the media on Thursday.

"I wouldn't sit here and say I'm to blame," said Johnson. "I wouldn't think so, but I'm not the guy to sit here and be the guy that points fingers and things like that. It's just a situation where I'm going to be only as good as my line's going to be. So we've got to work together and get better together."

Johnson has 21 yards on 19 carries over the first two weeks of the season.

"If you look at the tape, it's not true," he said about whether he is moving laterally too much. "I'm the highest paid guy (on) this team, so of course I get the criticism. But it's something I don't let get me down. It's a situation where we've all just got to get better as a team ...

"We're all working hard together. I'm not saying the offensive line is bad, they're not saying I'm bad. We're just working together trying to make it better. Because once we turn it over, and we get the praise, we're going to take the praise together as a whole team, not just the individual."

Chris Johnson is averaging just 1.1 yards per carry through the first two weeks of 2012.

But Johnson is averaging 1.2 yards after contact, meaning he is gaining more after contact than he is from the line of scrimmage.

Johnson has 21 yards on 19 rushes without a first down.

Johnson averaged 5.0 yards per carry over the 2009 and 2010 seasons, with a 1.6 yards after contact per rush.

Chris Johnson has 21 rushing yards on 19 carries through the first two games of the 2012 season.

“The run game ain’t working,” Johnson said. “We just aren’t executing the plays. I don’t know why we’re not.”

Johnson struggled in 2011, but figured to have a bounce back season for the Tennessee Titans.

“People need to step up and do their job,” Johnson said. “They don’t need to let people beat them. It don’t matter who the opposing defense is, you can’t let your guy beat you. You just can’t give up plays. You have to make plays like they make plays. I can’t speak for the defense. I can only speak for the offense.”

The San Diego Chargers improved to 2-0 with a 38-10 win over the Tennessee Titans.

The Chargers had a +16.0 advantage in The Trench Counter, dominating all aspects of the game with the exception of being even in turnovers. San Diego had a +38 edge in Total Rushes/Completions, running 75 total plays on offense against 40 for the Titans.

Philip Rivers went 24-for-32 for 284 yards, three touchdowns and one interception. Rivers found Dante Rosario for three touchdowns in the red zone. Michael Floyd caught six balls for 109 yards.

Jackie Battle scored two fourth quarter touchdowns, rushing 14 times for 69 yards in total as Ryan Mathews remained unavailable. Curtis Brinkley also had 18 carries for 42 yards. 

Jake Locker went 15-for-30 for one touchdown and one interception.

Chris Johnson continued to struggle, rushing eight times for just 17 yards.

The Denver Broncos had the best DVOA in Week 1 as they defeated the Pittsburgh Steelers, followed by the Baltimore Ravens over the Cincinnati Bengals and New England Patriots over the Tennessee Titans.

Football Outsiders also has a stat calle DAVE, which stands for DVOA Adjusted for Variation Early. After Week 1, DAVE accounts for 90 percent and the current VOA counts for 10 percent.

The Patriots rank first in DAVE at 41.0%, followed by the Falcons, Packers, Bears and Ravens. 

Here are the full rankings for DAVE with the preseason DVOA ranking in parentheses: 

1. Patriots (1)
2. Falcons (3)
3. Packers (2)
4. Bears (6)
5. Ravens (7)
6. Jets (8)
7. Broncos (11)
8. Saints (5)
9. Steelers (4)
10. Texans (13)
11. Eagles (12)
12. Cowboys (14)
13. Panthers (10)
14. Giants (9)
15. Buccaneers (22)
16. Lions (21)
17. Chiefs (15)
18. 49ers (23)
19. Chargers (19)
20. Bills (16)
21. Titans (17)
22. Redskins (20)
23. Raiders (24)
24. Bengals (18)
25. Vikings (29)
26. Seahawks (28)
27. Jaguars (26)
28. Dolphins (25)
29. Colts (27)
30. Cardinals (30)
31. Browns (31)
32. Rams (32)

Jake Locker injured his shoulder in Week 1's loss by the Tennessee Titans against the Patriots, but is expected to start in Week 2 against the Chargers.

Locker was 23-for-32 for 229 yards and a touchdown, plus an interception.

Matt Hasselbeck is Locker's backup with the Titans.

The New England Patriots comfortably beat the Tennessee Titans by a final score of 34-13 in Week 1.

The Patriots had a +19.7 advantage in the Trench Counter, the largest margin of Sunday's games. New England averaged 5.8 yards per play while having zero turnovers against two for Tennessee.

Tom Brady went 23-for-31 for 236 yards and two touchdowns, while Stevan Ridley gave the Patriots an effective ground game with 21 carries for 125 yards and one touchdown. New England only gained more than the 162 yards they had rushing on Sunday in one game last season. 

Both Aaron Hernandez and Rob Gronkowski caught a touchdown passes.

Jake Locker was 23-for-32 for 229 yards with one touchdown and one interception before injuring his shoulder. Chris Johnson rushed for just four yards on 11 carries, though he did have six receptions for 47 yards receiving.