The Seattle Mariners began this last decade with Brandon League as the closer. The Mariners acquired him from the Toronto Blue Jays for Brandon Morrow on December 23, 2009. He was a setup man his first season of 2010 than they turned him to be closer in 2011 where made the all-star team as well.
He had 37 saves while pitching in 65 games with an ERA of 2.79. The next season he was replaced as the closer after having several blown saves. The Mariners were in 4th place of the American League West so they traded him to the Los Angeles Dodgers at the trading deadline.