GREEN BAY, Wis. — Running back Ryan Grant scored a major victory in his negotiations with the Green Bay Packers, agreeing to terms on a four-year contract loaded with incentives and escalators that could earn him $30 million, according to his agent, Alan Herman.

"He's very happy," Herman said. "It's been a dream year for him."

Grant will fly to Green Bay today, sign the contract and undergo a physical. He probably won't take part in the intrasquad scrimmage tonight, but he should be in uniform when practice resumes at 2 p.m. CDT on Tuesday.

The Packers started out offering only a $1.75 million signing bonus, but Herman was able to negotiate a deal that will pay Grant a $3 million roster bonus when he signs the contract and another $1.25 million this year through base salary ($750,000) and another roster bonus ($500,000).

Thus, Grant will earn $4.25 million in 2008. Over two years, his take will be $8 million.

Herman said that there are many layers of incentives and escalators that will compensate Grant handsomely if he produces the way he did last year, when he rushed for 956 yards and eight touchdowns in 10 games.

If Grant rushes for 1,500 yards this year, his salary will be bumped up $4 million in 2009, Herman said. If he rushes for only 1,000 yards, he would only earn an additional $1 million.

Herman said the base salaries in the contract were set, but the incentives and escalators will determine Grant's income each year. He said based on the way Grant plays the next four years, he could earn $30 million or $24 million or $18 million. Once the deal ends, Grant, 25, will be eligible for unrestricted free agency.

Before this week, the two sides were talking about a six-year deal.

"Lowering the years gives us another crack at it," Herman said of another contract.

One of the benefits for the Packers is that all of Grant's earnings this year will count against the salary cap right away rather than carry into next season and beyond. The Packers are $30 million under the salary cap, so they have plenty of room to take on Grant's salaries.

Most teams would have made the $3 million roster bonus a signing bonus so the cap charge could be pro-rated over four years. But making it a roster bonus assures that it will count this year, thereby freeing the Packers of any future charges, even if Grant gets hurt or flames out.

With Grant's deal done, the Packers now have 21 of 22 expected starters under contract through at least 2009. The only starter scheduled to become an unrestricted free agent after this season is tackle Mark Tauscher.

Ten starters have contracts that expire after the '09 season, including tackle Chad Clifton, end Aaron Kampman, quarterback Aaron Rodgers, receiver Greg Jennings and nose tackle Ryan Pickett.

As for Grant, negotiations looked to be going nowhere when the Packers tore apart Herman's first proposal and came back with a deal offering only about $2 million in the first year. But negotiations heated up at the end of last week.

Herman reached negotiator Russ Ball on Saturday morning and the two spoke for nearly six hours before finalizing the agreement around 6 p.m.

Coach Mike McCarthy spoke after practice — before the deal was complete—about how important it was for Grant to get into camp immediately.

"It's time for him to get to camp," McCarthy said. "He is still a young player. He doesn't have a high level of experience, and it's time for him to get here and be a part of what is going on."

Herman said regardless of whether Grant makes it to the Pro Bowl four straight years or plays a significant amount of time, he's going to make good money on the deal. The Packers had submitted a one-year, $370,000 tender offer that secured their rights to the second-year running back, but Grant refused to sign it.

Feeling his situation was unique — he was on the Giants' practice squad in 2005 and sat out all of 2006 with a non-football related hand injury — Grant wanted a multi-year deal that would guarantee he would be compensated well if he played at the same level he did last year.

Grant became the starter in Week 8 and rushed for 100 yards six times, including his 201-yard playoff performance against the Seattle Seahawks. Only San Diego's LaDainian Tomlinson had more rushing yards (947) over the season's final 10 weeks.