The Mariners' search for a closer has them in the market for right-handers Brian Wilson and Grant Balfour, among others, according to Ken Rosenthal and Jon Paul Morosi of FOX Sports (on Twitter). The Mariners are known to be in the market for a ninth-inning arm this winter, and Wilson and Balfour represent two of the highest-profile names at the position.

Wilson, 32 in March, returned in late August and fired 19 2/3 innings of one-run ball between the regular season and the playoffs for the Dodgers. Wilson whiffed 21 hitters and walked only four, flashing an average fastball velocity of 93.2 mph. His strong showing likely helped to convince teams that his second Tommy John surgery is safely in the rear-view mirror. He's caught the interest of the Tigers, Rockies and a slew of other teams.

Balfour, 36 next month, saved 62 games for the 2012-13 A's en route to a 2.56 ERA with 9.4 K/9 and 3.6 BB/9. The Yankees, Tigers, Rockies, Rays and Angels have all already expressed interest in the Australian hurler, who is expected to sign with a new team due to the fact that he'll be too pricey for the A's.

It's a crowded market for relievers, but each can make a case for a multiyear deal. In general, it'd seem beneficial to sign early in the offseason, as this year's free agent class is rife with closer types, led by Joe Nathan.