The Phillies traded Matt Strahm this winter in an effort to lower payroll get more long term flexibility with their bullpen options. Once the trade was finalized, a ripple effect of that trade, unforeseen or not, was that the depth chart from the left handed side of the bullpen took quite the hit. Those three left handers from 2025 – Strahm, Jose Alvarado and Tanner Banks – were among the better options at getting left handed hitting out and were somewhat successful in keeping right handed hitters at bay as well. However, no longer would they have three left handers trotting in from the bullpen, meaning they had to backfill a little bit.
While the team still may keep only Alvarado and Banks as the left handers in the bullpen to begin the season, Rob Thomson has shown an affinity to keeping at least three southpaws out beyond center field at all times. If we were to assume that he was going to do the same for 2026, that means there is suddenly a spring battle to be followed. The bullpen hierarchy, as it stands right now, likely looks like this:
- Jhoan Duran
- Jose Alvarado
- Brad Keller
- Orion Kerkering
- Tanner Banks
- Jonathan Bowlan
- Zach McCambley
- ???????
While we could debate keeping McCambley at all, it’s probably a decent assumption that these seven pitchers will comprise the majority of the bullpen, leaving that eighth and final spot the one coveted by a handful of options that have been cultivated by the front office. If we continue to assume things and believe that Thomson will want another left handed pitcher for that spot, some of the options he has to choose from each has their own set of skills to stake their claim.
Tim Mayza
Mayza was the one that the team picked up last season with the hopes of being able to replace Alvarado. Once Alvarado was deemed out for the season, the Phillies claimed Mayza off of waivers and, coming off his own injury, put him into the bullpen to have him throw 16 2/3 innings of uneventful baseball.
His past success with Toronto suggested that once he was healthy, the team might have had quite a decent find for free from waivers, but there just never seemed to be any trust in him. Anything he could have done that would have been a leveraged situation simply went to Banks.
Still, there were some encouraging things that he did that earned him another minor league deal from the Phillies with a spring training invite. His velocity was perfectly fine, averaging 93.6 miles per hour on the fastball. It being a sinker that he threw most of the time, he kept the ball on the ground rather often, something the team likes from their relievers.
You just didn’t want him in the game with any right handed hitters in the lineup. His splits (.874 OPS against RHH, .499 OPS against LHH) were such that he is more or less unpitchable when a right handed hitter approaches the plate. In the age of the three batter minimum, that’s something that can’t be used too often.
Now I see why Rob Thomson used him sparingly.
Kyle Backhus
This does not look fun.
We are past the days of the LOOGY, the guy that only pitches to one, maybe two, left handed hitters, then departs for the showers. If that job were still available, Backhus would probably be in higher demand around the game. His wOBA against left handed hitters (.227) was 23rd among 134 left handed pitchers, starter or reliever, in 2025. That’s an incredible skill to have and makes one wonder why he was available for only a minor league deal.
As with Mayza, the story remains the game: right handed hitters destroy him. Of the 73 right handed batters he faced in 2025, he allowed five doubles, a triple and two home runs. His velocity, or lack thereof, means he can just throw the ball by them and the funk he shows against left handed hitters doesn’t have quite the same effectiveness against righties.
Starting to sense a theme here?
Genesis Cabrera
Probably the longest of shots among the three listed here, Cabrera does do one thing better than the other two: get hitters to swing and miss.
In 2025, Cabrera bested Mayza and Backhus in whiff rate, his 27.1% whiff rate beating Mayza by two percent, Backhus by five. For a team that has focused on this particular trait quite a bit this offseason, that is going to carry some weight. How he went about it is somewhat counterintuitive to what I had previously thought. At first, I believed that Cabrera was getting these whiffs based on being able to throw his fastball by hitters, but in fact, his 95.7 average fastball velocity wasn’t being missed much (22.5% whiff rate) and his sinker was getting tattooed by opposing lineups (.639 SLG against). Getting swings and misses on his breaking pitches? Nope, his whiff rate on breaking pitches was the worst of the trio.
Where Cabrera excelled in getting swings and misses was a splitter that he started throwing for the first time in 2025. On this pitch, he got swings and misses 52.1% of the time. That might sounds like a weapon that can be unleashed for good, but when hitters did square it up, they did damage (two home runs in 20 plate appearances). If he can keep the pitch in the park and he can focus on refining a much better cutter, there could be something there the team can work with.
Now, this all sounds great, raising the same question with Cabrera that was raised with Mayza and Backhus and arriving at the same destination seems inevitable: why was he available for only a minor league deal?
You guessed it!
That .418 wOBA Kyle Backhus had against right handed hitters? It looks rough until you compare it Cabrera, whose .437 mark was the fourth worst among 122 southpaws.
If the Phillies are going to carry a third left handed reliever in 2026, someone is going to have to improve against right handed pitching. The options that are in camp on minor league deals are not without their warts, yet have demonstrated some modicum of success in the past. Backhus probably has the headstart on either Mayza or Cabrera by virtue of being on the 40 man roster already, yet he also needs to improve at getting righties out as well if he wants to have any kind of leveraged opportunities with the team. It also wouldn’t be surprising if the team continues to scour the league in search of a deal, a waiver claim, a free release that would be an improvement over what is in camp now.
For now, the battle continues….