Forget about Tony Romo, Brett Favre, Tom Brady, Adrian Peterson and Randy Moss football cards. While rookie singles of those players may be hot, Ryan Grant cards are scorching. His emergence at running back for the Green Bay Packers has made his only two rookie cards among the most active in the market.

The past two eBay auctions for his 2005 Playoff Honors (#191, numbered to 399) closed at $265 and $225,  while the past two auctions for his 2005 UD Sweet Spot (#177, numbered to 699) have finished at $175 and $250. How much have things changed? Before this season, those two cards were commmons and priced at $3 and $5, respectively. Most of the rise can be attributed to his performance, but there is also plenty of impact from having only two rookie cards, while most other rookies have around 40.

Grant has led the NFL in rushing since Week 8, with 717 yards and five touchdowns. He was an undrafted free agent in 2005 from Notre Dame, who didn't play a down in two years for the Giants and was acquired in a trade for a sixth-round pick just before the season started. DeShawn Wynn, who had been the Packers starting running back, was injured on the first play of Week 8, a Monday Night Football game vs. Denver. Grant hasn't looked back.