Tony Grossi of the Cleveland Plain-Dealer reports the Cleveland Browns have extended the qualifying offers to all five of their unsigned restricted free agents.

Each players has until June 15 to sign the one-year tender, or the Browns may reduce the tender amount to 110% of the player's previous year's base salary. The Browns have four voluntary "Organized Team Activity" sessions, and one mandatory three-day mini-camp, remaining on their off-season schedule. They will wrap these workouts up prior to June 15.

Here's a look at what not signing the tender could potentially cost the Browns' restricted free agents in terms of base salary in 2010.

Unsigned Restricted Free Agent: Abram Elam, S, four (4) accrued seasons
Tender Level, 2010 Base Salary: Second Round, $1.759M
Reduced Tender Amount: $1.265M
Difference: $494,000

Unsigned Restricted Free Agent: Jerome Harrison, RB, four (4) accrued seasons
Tender Level, 2010 Base Salary: Second Round, $1.759M
Reduced Tender Amount: $588,500
Difference: $1.1705M

Unsigned Restricted Free Agent: D'Qwell Jackson, LB, four (4) accrued seasons
Tender Level, 2010 Base Salary: Second Round, $1.759M
Reduced Tender Amount: $704,000
Difference: $1.055M

Unsigned Restricted Free Agent: Matt Roth, LB, five (5) accrued seasons
Tender Level, 2010 Base Salary: Second Round, $1.809M
Reduced Tender Amount: $770,000
Difference: $1.039M

Unsigned Restricted Free Agent: Lawrence Vickers, FB, four (4) accrued seasons
Tender Level, 2010 Base Salary: Second Round, $1.759M
Reduced Tender Amount: $588,500
Difference: $1.1705M