The Diamondbacks announced a one-year deal with outfielder Max Kepler. The signing won’t yet impact Arizona’s 40-man roster or active roster, as Kepler is still on the restricted list while serving an 80-game PED suspension.
News broke last January about Kepler’s positive test for the PED known as Epitrenbolone, and with Kepler still on the free agent market, his camp and Major League Baseball worked out an agreement for Kepler to serve his 80-game suspension even if he didn’t land a new contract. Since Kepler didn’t sign until now, he has been serving his 80-game suspension as if he was still a member of the Phillies (his former team).
Philadelphia played its 65th game of the season today, so the final 15 games of Kepler’s suspension presumably now adhere to the Diamondbacks’ schedule. This makes June 25 the first day Kepler is eligible to take part in the 2026 season, so he’ll get a couple of weeks of ramp-up time in the minor leagues before making his D’Backs debut.
Financial terms of the signing weren’t revealed, but it can be assumed Kepler will be receiving a pretty small guaranteed salary prorated over the remainder of the 2026 campaign. Even before the suspension, Kepler was likely facing a tough market given his lack of production with the Phillies last year. He hit .216/.300/.391 with 18 home runs over 474 plate appearances, and even those modest numbers now come under the cloud of the PED suspension.
Kepler has provided almost exactly league-average offense over his 11 MLB seasons, as he had a 101 wRC+ from a career slash line of .235/.316/.425 over 1199 PA with the Twins and Phillies. Kepler posted a 122 wRC+ in both 2019 and 2023 and a 109 wRC+ during the shortened 2020 season, but he has otherwise been a subpar hitter in his other eight seasons.
The left-handed hitter has struggled against southpaw pitching for much of his career, limiting Kepler’s effectiveness as a true everyday player. Kepler has expressed some frustration over a platoon role in the past, such as last June when he said “I signed here [in Philadelphia] being told that I was going to be the starting everyday left fielder” after he wasn’t in the lineup for three straight games when the Phils faced left-handed starters.
While naturally more productive against right-handed pitching, Kepler hasn’t really been a righty-masher, as he has hit a respectable but uninspiring .240/.324/.446 over his career with the platoon advantage. Most of Kepler’s success against righties came earlier in his career, as he has batted just .237/.315/.408 in 1436 PA against righties since Opening Day 2022.
Beyond the offense, Kepler also contributed outstanding right field defense during his prime years as a regular in the Twins lineup. His defensive metrics, however, have dipped as he has battled knee problems in recent years, and the move to the seemingly easier left field position in Philadelphia resulted in +2 Defensive Runs Saved and 0 Outs Above Average over 773 1/3 innings (which represented the first time Kepler had ever played left in his career).
Corbin Carroll obviously has right field covered in Arizona, so Kepler will likely act as a left fielder and DH against right-handed pitching. The Diamondbacks were known to be looking for left-handed hitting help, given that outfielders Lourdes Gurriel Jr., Jordan Lawlar, Ryan Waldschmidt, and Tommy Troy are all right-handed hitters. By the time Kepler is eligible for reinstatement, Gurriel should be back from the hamstring strain that has sidelined him for last couple of weeks, and Lawlar (currently on a Triple-A rehab assignment) should be back from the broken wrist that has kept him on the IL for over two months.
It should be noted that Kepler’s salary is likely small enough that the D’Backs would feel comfortable releasing Kepler (or designating him for assignment) if he doesn’t produce. This seems like purely a depth move for the Snakes as they continue to try and figure out two-thirds of their outfield picture, and a bit of a flier to see what Kepler might have in the tank in his age-33 season. However Kepler might contribute to Arizona’s postseason chase, he is ineligible to participate in this year’s playoffs, as per the terms of PED suspensions.