The Mets optioned Warren to Triple-A Syracuse on Friday, Anthony DiComo of MLB.com reports.

Warren made four appearances in the Grapefruit League, allowing one run on three hits with a 2:2 K:BB over four innings. The right-hander gave up just one run across 9.1 frames with the Mets last year and could join the big club as bullpen depth at some point this season.

Arizona manager Torey Lovullo mentioned Sewald as a potential closer candidate Wednesday, Alex Weiner of Arizona Sports reports.

Lovullo has yet to name a closer and said he probably won't until the regular season begins, but Sewald has the most experience of the group competing for the role. "I love where [Paul] Sewald is at," the manager said. "He's been throwing the heck out of the ball. We have other guys that have been doing the exact same thing. So, out of fairness to the group, I probably won't say anything until Opening Day." Those comments came after Sewald authored a fourth consecutive scoreless Cactus League appearance. Overall, he has allowed two runs over six innings (3.00 ERA) with zero walks and four strikeouts. Kevin Ginkel (11.81 spring ERA) and Ryan Thompson (6.14 ERA) are also among the relievers that could get save opportunities early in the regular season.

Hamilton cleared waivers Thursday and was sent outright to Triple-A Gwinnett.

Hamilton doesn't have any minor-league options remaining, so the demotion to Triple-A will cost him his place on Atlanta's 40-man roster. The 30-year-old righty made just two appearances in the Grapefruit League this spring, giving up one run on three hits and two walks while striking out one batter in 1.2 innings.

The Mets optioned Gerber to Triple-A Syracuse on Thursday.

Gerber pitched well during his brief stint in the majors last season, giving up just one earned run while striking out four batters over 4.1 innings. However, he will need to show consistent success before the Mets welcome him into their bullpen, especially after posting a 6.23 ERA and 1.46 across 43.1 frames in Triple-A last year.

The Phillies reassigned Wilson to minor-league camp Thursday.

The veteran right-hander signed with the Phillies as a non-roster invitee in December, but he was inconsistent across four Grapefruit League appearances with a 7:7 K:BB. Wilson could still receive a look as a multi-inning reliever for the Phillies at some point this season.

The Phillies optioned Johnson to Triple-A Lehigh Valley on Thursday.

Johnson gave up two runs on five hits with five strikeouts and six walks over seven Grapefruit League appearances and won't begin the season in the majors. He made 10 appearances for the Phillies last year and had a 4.26 ERA, 1.18 WHIP and 17:4 K:BB across 12.2 innings.

The Nationals optioned Fernandez to Triple-A Rochester on Thursday.

The right-hander closed last season in Washington's bullpen after being claimed off waivers from the Dodgers in August, making three appearances during the final week of the season. Fernandez was unable to secure a place on the Opening Day roster after he surrendered five runs with a 5:3 K:BB over five innings during spring training.

The Reds optioned Mey to Triple-A Louisville on Wednesday.

Mey will fall short of a spot in Cincinnati's Opening Day bullpen after surrendering nine earned runs in just six Cactus League innings. Although he struggled this spring, the 24-year-old righty posted a 3.43 ERA in 21 innings with the Reds last season and a 2.48 ERA across 40 frames in the minors, so he figures to rejoin the big-league squad at some point this year whenever Cincinnati needs a fresh arm.

The Cardinals reassigned Blewett to minor-league camp Wednesday, Derrick Goold of the St. Louis Post-Dispatch reports.

Blewett had been attending spring training as a non-roster invitee, but he made a spirited run at a spot in the Cardinals' Opening Day bullpen after submitting a 1.50 ERA, 1.17 WHIP and 7:3 K:BB in six Grapefruit League innings. With Blewett now officially out of the mix for a roster berth, Rule 5 pick Matt Pushard and offseason trade acquisition George Soriano should have better odds of breaking camp with the big club.

The Brewers announced Wednesday that Yoho has been diagnosed with a low-grade right soleus strain and is projected to return to action in mid-April, Curt Hogg of the Milwaukee Journal Sentinel reports.

The soleus strain will take Yoho out of contention for a spot in the Brewers' Opening Day bullpen, but he's not expected to be in store for a long-term stay on the shelf to begin the season. The 26-year-old righty was one of the more dominant relief arms in the International League last season but struggled across his multiple stints in the majors, giving up seven earned runs on eight hits and nine walks over 8.2 innings in eight regular-season appearances for Milwaukee.