NEW ORLEANS — A worldwide stage such as Super Bowl XLVII sometimes lends itself to catapulting a relatively obscure player into an overnight phenom.

Undoubtedly, that thought has crossed the mind of San Francisco 49ers safety Darcel McBath, a second-round draft pick of the Denver Broncos in 2009 who’s playing on his third team in four NFL seasons.

“I always think of myself doing something spectacular every game, but I think it’s amplified in this game,’’ said McBath, who signed a one-year, $540,000 contract with the 49ers last July. “Everybody wants to go out there and play their best game.

“The main thing, though, is I’ve been telling myself just do my job and something will happen.’’

Since being reunited with former Broncos’ secondary coach Ed Donatell in San Francisco, McBath has played primarily on special teams and backed up the 49ers’ stellar safety tandem of Donte Whitner and Dashon Goldson.

“If they ever go down, God forbid, or they have to change a shoelace or something, I’ll be in there for them,’’ McBath said. “It’s been a long journey for me from Texas Tech, but things happen for a reason, and I’m here for a reason. All of these things happened so I could be here.’’

Practice report

The 49ers worked efficiently for 80 minutes Friday at the New Orleans Saints indoor practice facility, with practice ending 15 minutes early.

“We got everything done we normally do,’’ 49ers coach Jim Harbaugh said. “There were only one or two repeats. The whole tempo was good in and out of the huddle and that might reflect that the most. There was good attention to detail and a crisp tempo.’’

Linebackers Ahmad Brooks and Aldon Smith were limited for the third consecutive day but are listed as probable on the league’s injury report.

The 49ers will hold a 30-minute walk through Saturday at the Mercedes-Benz Superdome to conclude their preparation for Super Bowl XLVII. They also don’t plan to move hotels Saturday night.

“We’re staying at the hotel,’’ he said. “Unless we change our mind.’’

Harbaugh said kicker David Akers didn’t miss a field-goal attempt all week, and quarterback Colin Kaepernick enjoyed an “exemplary’’ week of practice.