Wearing the #22 jersey of former fan favorite Fred Jackson, new Bills running back Reggie Bush is also trying to show an old dog can learn new tricks.

“I have to remind some people that I still got it,” said Bush. “I’m 11 years in but I’m not done yet. I still have the wheels.”

In his first practice a little over 24 hours after signing with the Bills, the 31-year old looked good at times, showing the burst that made him a household name a decade ago. However, Bush occasionally appeared rusty with a drop in punt drills and a pass drop in team drills.

Last season with the 49ers, Bush tore his left meniscus and missed the final month of the season. He says the surgically repaired knee can handle the demands of training camp and a 16-game season.

“The main focus for me today was to play football without thinking about coming off the injury and trying to protect my knee,” said Bush. “The knee responded well, especially making cuts off turf which is the biggest test.”

The former Heisman Trophy winner says he’s stunned to now be on his fifth NFL team and that the Bills offensive playbook is familiar to those he’s seen in the past.

“West Coast Offense is West Coast Offense,” said Bush. “I’m seeing a lot of things that I’m very familiar with. Lot of route concepts and names for plays that I’m familiar with. I’m not going to have any issues with picking up this playbook really fast.”

The Bills are off on Wednesday before returning to practice on Thursday at 10am. It will be the 5th of 16 practice sessions open to the public at St. John Fisher College.