Just like their counterparts in Major League Baseball, the players in Japan’s Nippon Professional Baseball have various ongoing labor battles in the context of their league. Evan Drellich of The Athletic took an extensive look at some of the current discussion topics in a column published this morning.
Some of the battles involves things like endorsement rights but fans of MLB will likely be most interested to know that the players are fighting for earlier free agency, which could allow some of them to make the move to North America sooner.
As laid out by Drellich, NPB players have two different forms of free agency. A player can achieve domestic free agency after seven or eight years in the league, depending on whether the player was drafted out of high school or college. Unlocking that right gives a player the ability to sign with another NPB club. But getting full international free agency, allowing a player to sign with an MLB club, takes nine years.
The Japan Professional Baseball Players Association is trying to lower both of those numbers to six years, the same amount of service time that MLB players need for free agency. One source tells Drellich that the league was willing to offer a reduction in domestic free agency but not international free agency, though the full details of that offer aren’t publicly known.
NPB players are often made available to MLB clubs before those nine years are up via the posting system. Under that system, the player’s NPB club posts them for MLB clubs, opening a 45-day negotiating window. If a player signs with an MLB club in that time, the NPB club gets a posting fee, which is relative to the size of the contract the player got from the MLB club. Bigger deals naturally lead to bigger posting fees. In an extreme example, when the Dodgers signed Yoshinobu Yamamoto to a 12-year, $325MM deal this offseason, they also had to pay almost $51MM to the Orix Buffaloes, the NPB team that posted him.
Although Yamamoto was able to come over to the majors at the relatively young age of 25, other pitchers often have to wait longer. Shota Imanaga, for example, was just posted in the most recent offseason and signed with the Cubs. He had pitched in parts of eight NPB seasons through 2023 but still didn’t have full international free agency. He is now in his debut MLB season at the age of 30.
There’s also no guarantee that a player will be made available via the posting system. Kodai Senga had to reach full international free agency before coming to the majors because his NPB club, the Fukuoka SoftBank Hawks, has a team policy against posting their players. Senga signed with the Mets going into 2023, which was his age-30 season.
If the rules were to change, future players in a similar position to Imanaga or Senga could make the move to North America a few years earlier. That would increase their earning power in a couple of ways. Teams clearly value youth, as shown in the massive guarantee that Yamamoto got. Senga and Imanaga got $75MM and $53MM guarantees, respectively. Part of that may be due to the Dodgers valuing Yamamoto as more talented, but it’s also fair to assume that he wouldn’t have got as much money if he were heading into his age-30 season like Senga and Imanaga.
Beyond the age factor, if a player is able to reach full free agency at a young age, the lack of a posting fee could mean more money going directly to the player. The Cubs were willing to give Imanaga a $53MM guarantee but also paid $9.825MM to the Yokohama BayStars, his NPB club. Theoretically, that willingness to spend north of $60MM on Imanaga could have seen that amount of money go straight to him if he were a free agent, as opposed to the BayStars getting a big cut.
There’s nothing in Drellich’s article to suggest that changes are coming to the system that would affect younger players such as Roki Sasaki. Yamamoto was made available to MLB clubs just after turning 25, a notable age since that is when international players are no longer considered “amateurs” under MLB rules. Before turning 25, players are subject to the international bonus pool system, where each team gets roughly $4-8MM to spend on player bonuses. Broadly speaking, the small-market teams get bigger pools and the large-market clubs get smaller ones.
If a player wants to make the move before turning 25, they are therefore limited to a relatively modest bonus. For example, Shohei Ohtani left the NPB and signed with the Angels prior to his age-23 season. He received only a $2.3MM signing bonus at that time, obviously far less than what Yamamoto got by waiting until his 25th birthday.
Sasaki, who doesn’t turn 23 until November, may be in a similar boat to Ohtani. He turns 23 in November and there have been rumors that he may be posted this offseason. If that comes to pass, he would only be able to secure a small signing bonus of a few million bucks and there’s nothing to suggest that is changing.
Whether Sasaki is posted this winter or not is therefore another matter, but it could still be a notable change if it the JPBPA is successful in changing the free agency rules. In future, players as talented as Imanaga or Senga could have the chance to come over to Major League Baseball a few years earlier than under the current system, which could be a nice development both for those players and fans who want to see the best players competing against each other in North America.
It’s perhaps due to the constraints of the current system that another young Japanese player, Rintaro Sasaki, chose to play college ball in the United States rather than enter the NPB draft. While NPB clubs may not be excited about losing their control over players, they may also recognize that loosening the reins could reduce the chances of other players skipping the NPB entirely.
Whether the JPBPA will be successful remains to be seen. The system is not exactly analogous to the MLB-MLBPA dynamic. As laid out by Drellich, the collective bargaining agreement doesn’t have a set time limit like in North America, rather a rolling and ongoing negotiation. It’s also a complicated legal matter involving Japanese antitrust laws, with JPBPA set to file a challenge to the NPB’s reserve system at some point this year. Fans interested in getting into all the nitty-gritty details of the negotiations are encouraged to read the piece in full.
Neris, 35, returns to an organization that he has had success with. After many successful years with the Phillies, Neris joined the Astros going into 2022. He signed a 
