Don Nomura has tweeted that Yu Darvish will be posted tomorrow.

Yu Darvish being posted tomorrow #darvish

UPDATE @ 3:40pm - Darvish also posted the following update to his blog:

To my fans: an update

On this day, Yu Darvish has decided to make use of the posting system.

I wanted to inform you, the fans, first and foremost so I decided to announce my decision [at my blog].

I am extremely grateful to the Hokkaido Nippon Ham Fighters.

I can not provide any other details at this time because I just recently filled out the paperwork for the posting process.

I would like to hold a press conference once everything is finalized.

Yu Darvish

UPDATE @ 4:45pm - Early reactions -

Hideki Kuriyama, Nippon Ham Fighters, manager (via Daily Sports): "The [Fighters] told me that there were two possibilities so it is not like I was not prepared for this.  Even though it may be true that there is no other pitcher like him anywhere else in Japan, I do not plan on letting this turn out team into one that can not compete.  But in terms of the process, it is still early so I will continue to consider all possibilities as I prepare for next year."

Masahiro Tanaka, Rakuten Eagles, pitcher (via Daily Sports):  "I read about it on Twitter.  I am not really in any position to say anything, but it does make me sad that I will not be able to face him anymore once he goes over there."

UPDATE @ 9:56pm - More reactions -

Toshimasa Shimada, Nippon Ham Fighters, team rep (via Sanspo): "He is Japan's number one pitcher right now.  I would like to see him to go and aim to become the world's ace. ... I hope we can be put into a situation where we can help him realize his dreams."

Yuki Saito, Nippon Ham Fighters, pitcher (via Nikkan Sports): "I hope things go well and according to plan."

UPDATE 12/9 @ 12:32am - More reactions -

Sho Nakata, Nippon Ham Fighters, INF/OF (via Sanspo): "He taught me a lot of things, like life off the field and training.  You can say that I will be sad."

Yuki Saito, Nippon Ham Fighters, INF/OF (via Sanspo): "I was surprised.  A part of me would still like to learn more from him, but I am also excited about watching him pitch in the Majors."

Takahiro Arai, Hanshin Tigers, INF (via Sanspo): "For all kinds of reasons, including the fact that he is Japan's Ace, I hope he does well."

Takahiro Okada, Orix Buffaloes OF (via Sanspo): "The Majors are at the top of the baseball world.  When I managed to a home run off Darvish, Japan's great pitcher, it gave me confidence.  I am excited to see how well he does in the Majors."