--How long has Brett Favre played in the NFL? Well, consider that San Francisco interim coach Mike Singletary played against him twice in 1992, the final season of Singletary's Hall of Fame career with Chicago, and Favre's first year as a starter with Green Bay.

The Packers and Bears split that season, and Singletary remembers the second game, which Green Bay won.

Singletary recalled, "I remember after that game, thinking to myself, this guy is going to be special. ... It was cold that day and the ball passed by and I literally heard the ball (as it went by). The guy had leadership; something about him that you knew he was going to be successful."

--Jets coach Eric Mangini said he wouldn't do anything different in terms of preparation this week in adjusting to the time-zone difference from the last two times the Jets played in California. They lost at San Diego and at Oakland earlier this year.

"At the end of the day," he said, "you wake up and you play football. East Coast, West Coast, Mars, Mexico, London, whatever it is, rainy, hot, you've just got to go out and play."

Mangini didn't speculate on how weightlessness on Mars might affect the passing game.

--What rookie wall? TE Dustin Keller has hit his stride, with 27 receptions in the last four games.

"I feel good," he said with a smile Wednesday. "No signs of the wall coming anytime soon."

BY THE NUMBERS: 4.7 -- Yards per carry for RB Thomas Jones, who leads the AFC with 1,088 yards rushing and is fourth in the NFL in that category. That's the highest average in Jones' NFL career and over a yard more than the 3.6 he averaged last season.

QUOTE TO NOTE: "We're going to get (the 49ers') best, so we have to play our best. We're not good enough yet to think that we can play average and get away with it." -- QB Brett Favre.