Keller allowed two runs on four hits over two innings of relief in Friday's 8-1 loss to the Diamondbacks. He struck out three.

EDGE Analysis

Keller joined the Cubs over the winter on a minor-league deal, but he did enough in camp to warrant a look as a long reliever on the MLB roster. He was able to make his team debut in mop-up duty Friday, and while Arizona managed some solid contact, he at least tallied three strikeouts in his two frames. The righty figures to work mostly in low-leverage spots for Chicago, at least for the time being, giving him limited fantasy appeal.

The Cubs selected Keller's contract from Triple-A Iowa on Thursday, Sahadev Sharma of The Athletic reports.

EDGE Analysis

Keller showed a bump up with his stuff this spring and he accrued a 13:2 K:BB over 11.2 innings. The veteran right-hander will likely work in long relief for the time being.

The Cubs are likely to add Keller to their major-league roster rather than allow him to exercise the opt-out clause in his minor-league contract, Patrick Mooney of The Athletic reports.

EDGE Analysis

Keller has "opened eyes" in Cubs camp with his velocity jump and mechanical improvements, per Mooney, so the team doesn't want to let him get away. The big righty has allowed four runs with a 6:1 K:BB over seven innings during Cactus League play. Keller seems likely to serve in a long relief role initially for the Cubs.

The Cubs signed Keller to a minor-league contract Wednesday that includes an invitation to spring training, Jacob Zanolla of Cubs Insider reports.

EDGE Analysis

Keller made 16 appearances (two starts) between the White Sox and Red Sox in 2024, finishing with a 5.44 ERA and 32:15 K:BB over 41.1 innings. The 29-year-old is likely to begin the 2025 campaign as rotation depth at Triple-A Iowa.

The Red Sox re-signed Keller to a minor-league contract Friday, Chris Henrique of Beyond The Monster reports.

EDGE Analysis

For the second time since mid-August, Keller has elected free agency, only to re-sign with Boston on a minor-league pact. He will report to Triple-A Worcester, where the 29-year-old will provide swingman depth.

Keller cleared waivers Thursday and elected to become a free agent.

EDGE Analysis

Keller was cast off the Red Sox's 40-man roster Tuesday after turning in a 5.84 ERA and 1.62 WHIP across 24.2 innings with the team. The 29-year-old elected free agency and re-signed with the Red Sox on a minor-league deal when he was DFA'd by Boston earlier in the month, though Keller may have to head elsewhere this time around.

The Red Sox designated Keller for assignment Tuesday, Pete Abraham of The Boston Globe reports.

EDGE Analysis

Keller coughed up five runs (three earned) over four innings in an extended relief appearance Monday versus the Blue Jays. He wasn't going to be available for at least a couple days, so the Red Sox have elected to summon another reliever in his spot.

The Red Sox selected Keller's contract from Triple-A Worcester on Monday, Chris Cotillo of MassLive.com reports.

EDGE Analysis

Keller rejected an option to Worcester earlier this month before re-signing with Boston on a minor-league deal. He's now back in the big leagues to provide a fresh arm for Boston's bullpen.

The Red Sox re-signed Keller to a minor-league contract Tuesday, Chris Hatfield of SoxProspects.com reports.

EDGE Analysis

Keller refused an option to Triple-A Worcester from the Red Sox but has quickly re-upped on a minor-league deal. He will likely move into Worcester's rotation.

Keller elected free agency Tuesday, Alex Speier of The Boston Globe reports.

EDGE Analysis

Keller's tenure in the big leagues afforded him the ability to decline an option to Triple-A Worcester and elect free agency, and the veteran right-hander has exercised that right and will move on from the Red Sox. He holds a 5.30 ERA and 30:13 K:BB over 37.1 innings at the big-league level in 2024.