Two months ago, Luis Castillo had no idea where he would call home past the MLB trade deadline.

On Saturday, he marked Seattle as his home for a long while.

The Mariners extended Castillo with a five-year deal worth $108 million.

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Luis Castillo pitches

Luis Castillo #21 of the Seattle Mariners pitches in the first inning against the New York Yankees at T-Mobile Park on Aug. 9, 2022 in Seattle, Washington.  (Photo by Alika Jenner/Getty Images)

"Every baseball player wants to have a dream like this become a reality," Castillo said in a statement. "I’m happy I was able to accomplish this with the Mariners, and I want to thank everybody in the organization for treating me so well."

The Mariners acquired Castillo from the Cincinnati Reds days before the deadline, solidifying what was already a stacked rotation with defending AL Cy Young Award winner Robbie Ray, Logan Gilbert, Marco Gonzalez, and George Kirby.

Seattle is set to make the postseason for the first time since 2001, when they won 116 games. A postseason appearance for the Mariners will break the longest postseason drought in North American professional sports.

Luis Castillo hyped up

Luis Castillo #21 of the Seattle Mariners reacts during the third inning against the San Diego Padres at T-Mobile Park on Sept. 14, 2022 in Seattle, Washington. (Steph Chambers/Getty Images)

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Castillo was the best pitcher on the trade market, as Cincinnati is in a huge rebuild. It seemed like he was on the trade block for years, but the Reds finally pulled the trigger as Castillo was slated to reach free agency after the 2023 season.

If Castillo pitches at least 180 innings in 2027, the deal would then be extended through the following year, and the Mariners would owe the pitcher another $25 million in 2028.

Castillo will receive $10 million next year atop his $7 million signing bonus, and will earn $22.75 million in each year from 2024 to 2027.

The right-hander has a full no-trade clause in the first three years of the deal, 

In nine starts as a Mariner, Castillo has pitched to a 2.83 ERA while striking out 10.7 batters per nine innings with a 1.09 WHIP.

Luis Castillo pitching with Mariners

Luis Castillo #21 of the Seattle Mariners pitches against the San Diego Padres during the second inning at T-Mobile Park on Sept. 14, 2022 in Seattle, Washington. (Steph Chambers/Getty Images)

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It's been quite the nine months for Seattle - they signed Ray to a five-year, $115 million deal, extended J.P. Crawford to a five-year deal, and inked rookie phenom Julio Rodriguez to a deal that could become the richest in MLB history.