Kimbrel declined the Red Sox's one-year, $17.9 million qualifying offer and became a free agent Monday, Chris Cotillo of MassLive.com reports.

EDGE Analysis

This comes as no surprise, as Kimbrel is expected to command a healthy contract this offseason after putting together another All-Star campaign as Boston's closer. The 30-year-old finished the season with 42 saves, a 2.74 ERA, 1.00 WHIP and 96:31 K:BB across 62.1 innings for the World Series champions.