SAN FRANCISCO -- Free agent cornerback Nnamdi Asomugha reached agreement on a one-year contract with the San Francisco 49ers on Tuesday that could pay him as much as $3 million this year.

Asomugha's representative, Ben Dogra, said that Asomugha is expected to sign his new deal Wednesday. He was busy taking high school students around his familiar Bay Area turf on Tuesday in an effort to show them their future options and college choices.

The contract has no guaranteed money. Asomugha is due to earn a base package of $1.35 million with salary and bonuses, and could make an additional $1.65 million in incentives for playing time, awards such as the Pro Bowl and reaching the playoffs.

"He's excited to be a 49er and feels it's a great football team, and he's returning home," Dogra said in a phone interview. "It's such a unique set of circumstances that he's coming back. It's not about the money for him. He wants to play for a winner. He had a very good visit with them 10 days ago and again over the weekend. He thinks they have a great chance to win a Super Bowl and he wants to be part of it. He has a chip on his shoulder, in a good way."