AL West

The Los Angeles Angels probably don't need to be told this, but they should feel blessed to have Mike Trout. He's been a regular since 2012—a historically awesome regular since 2012.

But now for something that maybe the Angels do need to be told: They should be mindful of Trout's historical awesomeness possibly going to waste.

The Houston Astros have outraced the competition to land Carlos Sierra.

Jesse Sanchez of MLB.com reported the Cuban flamethrower has agreed to sign with Houston, though terms of the deal have not been disclosed.

Yu Darvish missed the entirety of the 2015 season following Tommy John surgery, and the Texas Rangers starting pitcher could be out of the rotation for another month upon the start of the 2016 campaign.

Rangers general manager Jon Daniels told Fox Sports' Jon Morosi on MLB Network Radio that Darvish could return in the middle of May.  

For a time, it looked like the Seattle Mariners had lost Hisashi Iwakuma. During that time, they had the look of a solid yet flawed team.

But then Iwakuma fell back into their laps. And now, well, surprise! What was a solid but flawed team now looks like a plain ol' solid team.

The Texas Rangers and veteran starting pitcher Colby Lewis reportedly reached an agreement on a one-year, $6 million deal late Thursday.

The term “untouchable” is always relative, and the parameters of it depend on the organization and front office that hold said player who might be off limits in trade discussions.

Hisashi Iwakuma is staying in Washington, after all.

After originally agreeing to leave the Seattle Mariners for the Los Angeles Dodgers, Iwakuma signed a new deal with the Mariners on Thursday for 2016 with options for 2017 and 2018, per Shannon Drayer of ESPN Radio in Seattle.

The Mariners posted a video of general manager Jerry Dipoto announcing the re-signing of Iwakuma:

The Los Angeles Angels continue to add depth in the outfield, signing Daniel Nava on Wednesday to a one-year contract for 2016. 

After revitalizing his career with the Texas Rangers at the end of 2015, Mike Napoli will be suiting up for the Cleveland Indians next season.  

The Washington Nationals have reached an agreement Thursday to trade infielder Yunel Escobar to the Los Angeles Angels in exchange for pitchers Trevor Gott and Michael Brady, announced the Angels.