Seattle Mariners pitcher Hisashi Iwakuma signed a two-year, $14 million extension with the club, CBS Sports reported Saturday.

Iwamura's new deal includes a $7 million option for 2015.

"Hisashi did a very nice job for us at the end of last season as a starting pitcher and we are happy that we have come to a mutual agreement," Mariners general manager Jack Zduriencik said in a press release. "We look forward to his veteran presence and to his contributions for the next few seasons."

Iwakuma was 9-5 with a 3.16 earned run average in 30 appearances this year, including 8-4 with a 2.65 ERA in 16 starts.