KBO’s Doosan Bears Sign Chris Flexen, Zach Logue

Veteran right-hander Chris Flexen is headed back to the Doosan Bears of the Korea Baseball Organization, the team announced. The Bears also announced the re-signing former big league lefty Zach Logue. Flexen, a client of O’Connell Sports Management, is guaranteed $1MM. Logue, an MSM Sports Management client, is guaranteed $1.1MM.

Flexen, 31, parlayed his first KBO stint into a two-year, $4.75MM contract with the Mariners. That contract included a club/vesting option that Flexen vested at $8MM with a strong performance in 2021-22, when he tossed a combined 317 1/3 innings of 3.66 ERA ball. His 16.5% strikeout rate was well below average, but Flexen showed good command (6.8% walk rate) and did a decent job avoiding hard contact.

The 2023 season proved to be a nightmare. Flexen was rocked for a 7.71 ERA in 42 innings with the Mariners before being designated for assignment. He was traded to the Mets, but New York only took on his contract as a financial counterweight to add reliever Trevor Gott without giving up much in the way of a return. Flexen was immediately designated for assignment by the Mets, who released him the following week.

Flexen has since signed with the Rockies, White Sox and Cubs. He was hit hard in 12 starts for the Rox down the stretch in ’23 but still landed a big league deal with the White Sox the following offseason. The South Siders gave Flexen 30 starts, during which he was a durable fifth starter, logging 160 frames with a 4.95 ERA. The Cubs added Flexen ahead of the 2025 campaign, and while he pitched to a tidy 3.09 ERA in 43 2/3 frames there, the right-hander did so with a 12.4% strikeout rate. The Cubs released Flexen in August, and he didn’t sign anywhere down the stretch.

Overall, Flexen parlayed his strong 2020 season in South Korea into another 147 MLB games and 623 1/3 innings of 4.48 ERA ball. He earned more than $15MM along the way and will now head back to the Bears, for whom he previously notched a 3.01 ERA in 21 starts (116 1/3 innings pitched).

As for Logue, this’ll be his second straight season with the Bears. He racked up 176 innings out of the Doosan rotation in 2025, turning in a tidy 2.81 earned run average. Logue doesn’t throw hard — he averaged 90.3 mph on his heater during parts of three MLB seasons — or miss bats at a particularly high level, but he used strong command and ground-ball tendencies to navigate a hitter-friendly league quite nicely. He set down 21.6% of opponents on strikes against a 5.4% walk rate and with a 53.8% grounder rate.

Logue, 30 in April, was a 2017 ninth-rounder by the Jays, who flipped him to the A’s in their four-player package to acquire Matt Chapman. He lasted only one season (2022) in Oakland, stumbling to a 6.79 ERA in his first 57 MLB frames. He’s since made brief appearances with the Tigers and Dodgers. In 70 MLB innings, he has a 7.20 ERA, a 17.6% strikeout rate and a 6.9% walk rate. ESPN’s Jeff Passan notes that Logue at least explored the possibility of coming back to North America before re-signing in the KBO. Another strong season could put him in line for a major league look next winter, particularly if he adds some velocity and/or noticeably ups his strikeout and swinging-strike rates.