Treinen will look to throw his sinker more often this season, Bill Plunkett of The Orange County Register reports.

EDGE Analysis

Per Statcast, Treinen went to his sinker at the lowest rate of his career last season while his cutter usage soared to a career high. In addition to making "subtle tweaks" to his delivery, Treinen will be looking to adjust his pitch ratios to something more in line with his 2018 campaign, when he dominated with a 0.78 ERA and 0.83 WHIP. Last season, his ERA jumped to 4.91 while his WHIP nearly doubled to 1.62.

Treinen will make his Dodgers debut in Saturday's Cactus League game against Colorado, Ken Gurnick of MLB.com reports.

EDGE Analysis

Treinen's absence from Cactus Leagues games thus far has been attributed to his work on mechanics. He'll have a chance to put that work to the test Saturday when he makes his first appearance in a Dodgers uniform. Treinen is expected to fill a high-leverage role in Los Angeles' bullpen this season despite posting a career-worst 4.91 ERA in 2019.

Treinen has yet to pitch in a Cactus League game because he has been focusing on mechanical adjustments, Ken Gurnick of MLB.com reports.

EDGE Analysis

Treinen ended the 2019 campaign early due to a back issue, but health is not a concern for the right-handed reliever this spring. Rather, he has been working on his delivery in hopes of regaining the form that made him one of the league's top relievers two seasons ago. Treinen is likely to make his Cactus League debut in the coming week.

Treinen (back) completed a bullpen session Thursday and doesn't appear to have any restrictions this spring, Alanna Rizzo of Spectrum SportsNet LA reports.

EDGE Analysis

While he was a member of the Athletics last season, Treinen was shut down in mid-September due to a stress reaction in his back, but the injury was never expected to be an issue heading into spring training. Treinen's ability to complete a bullpen session Thursday can be taken as a sign that he's healthy, so he'll now turn his focus to getting his arm conditioned ahead of Opening Day. After signing a one-year, $10 million deal with Los Angeles in the offseason, Treinen should be the leading candidate to serve as the top setup option to closer Kenley Jansen if he can recapture the form that made him an All-Star in 2018.

Treinen (back) signed a one-year, $10 million contract with the Dodgers on Wednesday, Jeff Passan of ESPN.com reports.

EDGE Analysis

Treinen lost his job as Oakland's closer in 2019 as he struggled with shoulder and back issues, but he is expected to be fully healthy for spring training. The right-hander will pitch out of the Dodgers' bullpen after posting a career-worst 4.91 ERA and 1.62 WHIP last season, although the ability to perform in lower-leverage situations behind Kenley Jansen could allow Treinen to bounce back in 2020.

Treinen (back) was non-tendered by the Athletics on Monday, Susan Slusser of the San Francisco Chronicle reports.

EDGE Analysis

Treinen missed the postseason due to a back issue, though he should be healthy for spring training, assuming he's picked up by another team. After posting a stellar 0.78 ERA with a 100:21 K:BB over 80.1 innings in 2018, he took a step backward in 2019, accruing a 4.91 ERA with a 59:37 K:BB through 58.2 frames.

Treinen (back) will not pitch in any postseason games, Shayna Rubin of The San Jose Mercury News reports.

EDGE Analysis

The issue is serious enough that the A's can already rule Treinen out for games that could take place weeks from now. However given his struggles prior to the injury (4.91 ERA, 1.62 WHIP in 58.2 innings), this seems like a common sense move even if he were medically cleared.

Treinen will not pitch again this season due to a stress reaction in his back, Susan Slusser of the San Francisco Chronicle reports.

EDGE Analysis

One of the top-two closers off the board in many mixed-league drafts, Treinen was a massive disappointment. He logged a 4.91 ERA, 1.62 WHIP and 59 strikeouts in 58.2 innings while providing 16 saves and six wins, eventually losing the closer's job to Liam Hendriks. Chris Bassitt is moving to the bullpen to help make up for Treinen's absence. Treinen hopes to be available for the postseason. He said he has had the issue for three weeks and thought he could pitch through it before an MRI revealed the stress reaction.

Treinen allowed two earned runs on two hits and two walks over an inning in a win over the Rangers on Friday. He struck out one.

EDGE Analysis

Treinen was brought on with a comfortable 14-7 lead in the ninth and worked himself into a jam by putting the first three batters he faced on base via an infield single and a pair of walks. The right-hander ultimately allowed a two-out single to Elvis Andrus that plated two of those runners before inducing a game-ending pop-up from Willie Calhoun. Treinen's latest hiccup is symptomatic of the inconsistency that's plagued his 2019 campaign, one that's seen him allow multiple earned runs on nine occasions after doing so only twice during his stellar 2018 season.

Treiner (back) pitched a scoreless inning, striking out all three batters he faced in Saturday's 10-2 win over the Tigers.

EDGE Analysis

Treinen was called on to pitch the ninth with the Athletics holding a large lead, and he retired Jake Rogers, Willi Castro and Harold Castro in order. He needed only 13 pitches -- 10 strikes -- to complete the inning. Treinen's back issues had kept him out of action since Sept. 3, and it may limit the reliever's usage going forward, but he was at his best Saturday. The 31-year-old has a 4.71 ERA and 1.57 WHIP over 57.1 innings this season.