NASHVILLE, Tenn. — The Titans just wrapped up practice on Thursday at Saint Thomas Sports Park.

On Sunday, the team will face the Oakland Raiders.

Three quick hits after today's practice:

**

Defense, defense, defense**

Titans defensive coordinator Dick LeBeau's defense has allowed a total of one touchdown -- a 24-yard touchdown pass by the Lions in the first quarter last week – in the first two weeks of the season.

The Titans and Seahawks (one rushing touchdown allowed) are the NFL's only two teams which have yet to allow two offensive touchdowns.

LeBeau on Thursday said he's been pleased with a number of things, but one thing has stood out.

"Effort,'' LeBeau said. "This part of the year it is all about getting better. We are getting better, and we have to continue to do that. We have to continue to grow, especially in this early part of the season. We have a new mix, some new guys in there learning to play off one another. We just have to continue to get better."

While Titans opponents have scored three total touchdowns this season, two of those were scored by the Vikings defense in Week 1. The Lions also scored two points on a safety on Sunday. Without those 16 points credited to opposing defenses, the Titans have allowed six field goals and one touchdown for a total of 25 points.

In the 57-year history of the team, this marks only the fifth time the defense has allowed one or zero touchdowns through the first two games of a season. The last time it happened was 2010, and the time before that was 1977.

"If you can hold offense to one touchdown, and two good offenses,'' Titans coach Mike Mularkey said. "I think our defense has done well. They can have a gazillion yards, as long as they don't get in the end zone."

**

Riley ready**

The Titans promoted defensive back Curtis Riley from the practice squad to the team's 53-man roster on Thursday.

Riley, originally signed as an undrafted free agent after the 2015 NFL Draft, has worked at both cornerback and safety with the Titans. He adds depth in the secondary, and also on special teams.

"It doesn't feel any different, because every day is a fight,'' Riley said. "I go out there every day and work hard regardless of whether I am on the 53 or the practice squad. I just have to keep doing what I am doing."

Riley spent his entire rookie season on Injured Reserve after suffering an ankle injury in training camp last August. He had a shoulder surgery last offseason as well.

"It is just a blessing (to get the chance)," Riley said. "I just stuck with it and stayed positive, and it is a blessing to be able to get moved up."

Injuries

Receiver Kendall Wright (hamstring) and linebacker Derrick Morgan (hamstring) both practiced again on Thursday.

"Derrick did better today than I was expecting, and I'm hoping we get full-speed Derrick tomorrow," Mularkey said. "Kendall did more – he took a third of the reps yesterday and I told him to get at least half the reps today. We'll see how much better he is tomorrow."

Tight end Delanie Walker (hamstring) and cornerbacks Brice McCain (knee) and Valentino Blake (chest contusion) returned to the practice field on Thursday after missing on Wednesday.