Gurriel is hitting.250 with a.975 OPS (on-base plus slugging) in the first three games of the World Series.
After hitting a home run against Darvish in Game 2, Gurriel was caught on camera saying the word Chinito - Spanish slang for a person of Asian descent - and pressing his fingers against his eyes.
"During last night's game I made an offensive gesture that was indefensible", Gurriel said in a statement.
"But I was in Japan and I know that it's offensive, and honestly, I apologize to [Darvish]". "On the contrary, I've always had a lot of respect for them". "I was commenting to my teammates that I hadn't had any good luck against Japanese pitchers".
Darvish called the gesture "disrespectful", but he also said he wasn't angry with Gurriel.
Darvish was born in Japan, to an Iranian father and a Japanese mother.
With his impending suspension deferred to 2018, Gurriel will stick in his usual spot in the order against the Dodgers for Game 4.
Major League Baseball is reportedly looking to review the incident, multiple outlets reported.
Gurriel will not appeal the suspension.
Gurriel is set to meet with Major League Baseball commissioner Rob Manfred before Game 4 in Houston on Saturday night to see if any type of discipline is warranted.
"Of course, Houston has Asian fans and Japanese fans", Darvish said through a translator. "He expressed remorse. I met with him today. If he felt offended, I want to apologize to him".
But it was what Gurriel was seen doing after the home run that stole the post-game headlines.
In particular, he was 1-for-7 with one strikeout this season against Darvish. "And then he made a mistake and then we're just going to learn from it".
The 33-year-old Gurriel, completing his second season in the major leagues after leaving Cuba, will lose $322,581 of his $12 million salary next year, which the Astros will donate to charitable causes.
Later, in a statement released on Twitter, the Iranian-Japanese player seemed more forgiving, adding that "no one is flawless", and while what Gurriel did "isn't right", he believes "we should put our effort into learning rather than to accuse him".
"What he had done today isn't right, but I believe we should put our effort into learning rather than to accuse him", Darvish wrote. "Since we are living such a wonderful world, let's stay positive and move forward instead of focusing on anger".