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NASHVILLE, Tenn. –** The Titans just wrapped up practice on Tuesday at Saint Thomas Sports Park.

On Thursday night, the team will face the Pittsburgh Steelers at Heinz Field.

Three quick hits: 

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"It Still Hurts Me"**

Two days later, Titans receiver Corey Davis is still upset about his mistake on Sunday.

Davis fumbled into the end zone while trying to score against the Bengals.

Instead of a touchdown, it was a touchback.

"Oh my gosh," Davis said on Tuesday. "It bothered me a lot. It still hurts me, just to know I put my team in that position. I was just trying to make a play, but I feel awful about it, still to this day." 

Davis has received encouragement from his teammates, including quarterback Marcus Mariota.

"He is the type of player that will make that play, will make a touchdown and create points for us," Mariota said of Davis. "He can't be down, and I don't think he is. He just has to learn from it and he'll be better."

Titans offensive coordinator Terry Robiskie said he gave Davis some constructive criticism.

Davis appeared to be headed in for the score, but he lost the handle as he approached the pylon.

"I'm not going to tell you something I didn't tell him," Robiskie said. "But I told him on the fumble: Where did that come from? Who makes that play? Who does that? When he came in Monday, we sat down and looked at it, and like I told him, "(It's) the dumbest play I've seen in football. Corey, 'What are you doing?' Here's a guy who is 6-4, 220, and he's trying to dive in from the five. Put your shoulder pads down and cover the ball up and get ready to go score. 

"But I think he is just trying to do it flashy."

Davis said he's looking forward to Thursday night, and making an impact.

Davis had four catches for 48 yards against the Bengals. On the season he has 13 catches for 149 yards.

"I am definitely getting more comfortable each week," Davis said. "The more I play, the more I get used to the game, it helps.

"(The fumble) is part of learning, and part of growing. I definitely learned a lot from that play."

**

Adoree' vs. JuJu**

While teammates at USC, Titans cornerback Adoree' Jackson used to face Steelers receiver JuJu Smith-Schuster in practices every day.

On Thursday night, they'll see one another on different sides of the ball, in different uniforms.

"It is going to be fun going against him," Jackson said. "The last time we competed against each other was before the Rose Bowl. So he is a tough receiver, physical, he has great hands, and he's a competitor."

Smith-Schuster, a second round draft pick, has 29 catches for 521 yards and five touchdowns on the season.

Jackson has started every game this season in the secondary for the Titans.

"I feel like we have both grown and developed from where we were in the past," Jackson said. "I've seen him on film, and he is looking great out there. It is going to be great competition." Injuries

Titans quarterback Marcus Mariota (ankle), tight end Delanie Walker (forearm) and guard Quinton Spain (toe) are all listed on the team's Injury Report. 

But all three were full participants in practice on Tuesday, with no issues.

"Injury update – full participation," coach Mike Mularkey said.  "All on board.

"Guys have put in the effort to get to that point, and our training staff has done a great job of getting everybody back and healthy, especially this time of the year."

Spain has missed the past two games, but Mularkey said if he responds well from practicing, and he feels good, he'll be back in the lineup against the Steelers.