May 10: The Rays have now officially signed Diekman, per Marc Topkin of the Tampa Bay Times. The corresponding move had been reported earlier today as righty Chase Anderson getting designated for assignment, which is also now official.
May 9: The Rays are finalizing a major league deal with left-hander Jake Diekman, reports Jeff Passan of ESPN, who adds that the deal is expected to be finalized in the next 48 hours. Once the move is official, a corresponding move or moves will be required to get the southpaw onto the active and 40-man rosters.
Diekman, 36, began the season with the White Sox but was released after posting a 7.94 ERA in 13 outings. In spite of those unfortunate results, he has quickly found a new home with the Rays. As Passan points out, Tampa recently got the unfortunate news that left-hander Garrett Cleavinger will likely miss the rest of the season due to an injury to the ACL in his right knee. In order to counteract that blow to their lefty relief mix, they’ll insert Diekman into Cleavinger’s spot.
It won’t be any kind of significant commitment from the Rays since Diekman already has a salary of $3.5MM this year and a $1MM buyout on an option for 2024 as part of the deal he signed with the Red Sox going into 2022. Since the White Sox released him, they will be on the hook for the majority of that, with the Rays only responsible for the prorated league minimum for any time Diekman is on the roster, with that amount subtracted from what the Sox pay.
Diekman has been a useful reliever in the past and the Rays will surely be hoping to find a way to get him back to that previous form. Control has always been an issue for the lefty as he only once posted a walk rate below 10%, which was way back in 2013, and his career walk rate currently sits at 13.3%. But he’s been most successful when overcoming those walks by racking up strikeouts. From 2012 to 2022, he struck out between 25% and 32% of batters faced in each full season, as well as punching out 36.9% in the shortened 2020 campaign. However, it’s been just 19% in the early going here in 2023.
Despite that fairly consistent strikeout stuff, the walks have caused his ERAs to fluctuate wildly over the years. He’s finished above 4.00 in four of the last seven full seasons while getting as low as 2.53 in 2017 and a sparkling 0.42 figure in the truncated 2020 year.
Since the Rays will be paying him the league minimum, there’s very little risk in giving him a shot to see if he can get a better handle on his stuff. If it doesn’t work out, they can quickly make him another casualty of the ongoing roster churn they do at the fringes of their roster without really losing anything.