The Portland Trail Blazers announced Monday that they have signed Greg Oden, the No. 1 overall pick in last week's NBA draft.

According the NBA's collective bargaining agreement, Oden's deal will be for two years, with team options for the third and fourth seasons. Oden will make $3.885 million as a rookie and $4.176 in Year 2. If they pick up the option in the third year, his salary will be $4.476 million.

Oden, a 7-foot center from Ohio State, signed his contract Sunday and immediately started working out with the other players on Portland's summer league roster, impressing teammates with his powerful dunks and ability to block shots.

"One shot I couldn't block, and he came over my shoulder and blocked it; I was amazed," said power forward LaMarcus Aldridge, the No. 2 overall pick in the 2006 draft. "And he dunked everything around the rim."