INDIANAPOLIS -- Sergio Brown's NFL resume consists of three starts in 59 games and a lot of special teams tackles and pinned punts during his five-year career.

Now, thanks to LaRon Landry's four-game suspension, Brown will be starting alongside veteran Mike Adams at safety against the Baltimore Ravens on Sunday.

"It's an opportunity for me to prove I can play in the NFL at any position on defense or special teams," Brown said. "I can go out there and put my best foot forward."

There's every reason to be leery about Brown starting when you take into account that the Indianapolis Colts felt the need to go out and sign Adams during their three-day mandatory minicamp in June to compete with Brown, Colt Anderson and Delano Howell for the starting job vacated by the departure of Antoine Bethea, who was named NFC Defensive Player of the Week on Wednesday.

"I just want him to relax," Adams said about Brown. "I've seen Serg practice and even when I got here it surprised me that he only has a handful of starts. He goes hard, even on special teams. He's so relentless."

Landry's suspension comes at a time where the Colts are about to face Baltimore quarterback Joe Flacco, Cincinnati's Andy Dalton and Pittsburgh's Ben Roethlisberger in three of the next four games.

"You don't react to it, you just move forward," Adams said about Landry's suspension. "Who am I to judge someone? At the same time, you have to have that 'next man up' mentality. That's the nature of the game, nature of the beast. It's like someone gets hurt, a sprained ankle and they're out three weeks. You have to move on. That might sound cold, but you have to move on in this league."