Rumbelow, who was recently added to the Yankees' 40-man roster to protect him from the Rule 5 draft, spent all of last season in the minors after missing almost all of 2016 due to Tommy John surgery. The 26-year-old split time between Double-A Trenton and Triple-A Scranton/Wilkes-Barre, posting a combined 1.12 ERA and 0.80 WHIP across 40.1 innings. He's looking to make it back to the majors for the first time since 2015 -- when he compiled a 4.02 ERA and 15 strikeouts in 15.2 innings with the Yankees -- and should have a clearer path in Seattle.
Following this announcement, it seems likely that Nesbitt will remain a free agent for a while longer, as the soon-to-be 27-year-old will spend almost a third of the 2018 season on the shelf. During this past year, he only appeared in 11 professional games -- all coming in the minors -- and sported a 6.08 ERA and 1.58 WHIP in 13.1 innings.
Purke appeared in 48 games with Triple-A Charlotte in the White Sox's system last season, posting a 3.84 ERA and 1.37 WHIP in 65.2 relief innings. The 27-year-old has only pitched in 12 career big-league games -- all coming in 2016 -- but will look to find a home with the Mets out of spring training.
O'Rourke was cut loose by the Twins after missing the entirety of the 2017 campaign following Tommy John surgery in May. It's unclear how far along the 29-year-old is in his rehab, but he'll be given the opportunity to compete for a spot on the Orioles' roster once he's back at full strength. O'Rourke posted a 3.96 ERA over 25 innings of relief during the 2016 season with the Twins.
By electing to forego the one-year, $17.4 million offer, Davis will become a free agent, though the Cubs will receive draft pick compensation if he ends up signing elsewhere. The 32-year-old shouldn't have trouble finding a multi-year deal after his stellar 2017 campaign, during which he converted 32 of his 33 save chances while compiling a 2.30 ERA and 79 strikeouts in 58.2 innings.
After declining Colorado's $17.4 million qualifying offer -- which comes after he passed on his $15 million player option last week -- Holland officially became a free agent heading into this winter. The soon-to-be 32-year-old had another great year, posting a 3.61 ERA and 1.15 WHIP during 57.1 innings of relief, to go along with 41 saves.
Vieira only appeared in one major-league game for Seattle this past season, striking out one during a clean inning against the Orioles in mid-August. The 24-year-old spent a majority of the year in Double-A, but also pitched in 12 games with Triple-A Tacoma once he received a call-up in July. Vieira has a big arm, and can regularly hit triple digits during his relief appearances. It seems possible that he will start the 2018 season in Triple-A, but he should be a member of Chicago's bullpen in due time.
Pagan made his major-league debut in 2017, posting a respectable 3.22 ERA to go along with his 0.93 WHIP and 56:8 K:BB across 50.1 innings of work. The 26-year-old has shown the makings of a high-leverage reliever, as evidenced by his 2.45 ERA, 305 strikeouts and 51 saves across five minor-league seasons (257.1 innings). He'll factor into Oakland's bullpen next season, and there's a good chance he could see high-leverage opportunities for the A's.
When pressed on the matter Tuesday, President of Baseball Operations John Mozeliak would not rule Reyes out for the start of the 2018 season. However, Mozeliak hinted that the team could hold Reyes back until closer to May 1, and deploy him in the bullpen initially, as a way of preserving him for later in the campaign. Reyes' future is almost certainly in the rotation, but the Cardinals won't want to push their luck with the top prospect. He underwent Tommy John surgery in February.
Cashman noted that a return to the bullpen would be a fallback option for Green, who posted a remarkable 1.83 ERA, 0.74 WHIP and 103:17 K:BB across 69 innings while serving primarily as a reliever in 2017. The 26-year-old has flashed potential as a starter in the past, posting a 1.52 ERA, 0.94 WHIP and 100:21 K:BB in 16 starts (94.2 innings) with Triple-A Scranton/Wilkes-Barre in 2016, though he's yet to put it together in the majors (6.10 ERA and 1.51 WHIP in nine big-league starts). His role for 2018 will be determined in spring training.