Felix deal a win for Mariners

Felix Hernandez is a very good bet to be worth what the Mariners are paying him. Otto Greule Jr./Getty Images

After much fanfare, the Seattle Mariners have finally signed ace Felix Hernandez to a seven-year contract. While all the details of the deal are not yet available, the basic framework is in place, guaranteeing the 2010 AL Cy Young winner stays in Seattle until 2019 at a cost of $175 million.

The arm of a pitcher may be one of the most fragile things on the planet, but the contracts of superstar pitchers tend to work out more often than not. The odds favor the Mariners getting a good return on their investment in one of baseball's best pitchers.