Felix Hernandez has been a workhorse for the Mariners.

It was reported last week that Hernandez had agreed to a seven-year, $175 million extension with Seattle. On Sunday, Buster Olney of ESPN reported that an elbow "issue" was keeping the agreement from the final steps.

Hernandez has already thrown 1,620 1/3 innings in his career. Since 1969, only three pitchers have thrown more innings before their 27th birthday -- Bert Blyleven, Fernando Valenzuela and Dwight Gooden.