The MLB trade deadline is bearing down, and the Mariners are still making moves. OK, maybe not the flashiest ones, but they did make the biggest trade of the season to date on Friday so give them a little slack.

Four things to know: M’s trade needs, injuries, Castillo, Kelenic

The Mariners traded left-handed reliever Anthony Misiewicz to the Kansas City Royals for cash considerations Monday, claimed veteran outfielder Travis Jankowski off waivers from the New York Mets, and shuffled their roster some to make way for starting pitcher Luis Castillo, who joined the team ahead of their series Monday night at Yankee Stadium.

Jankowski will give the Mariners defensive help in the outfield with Julio Rodríguez currently on the 10-day injured list with a wrist injury. The 31-year-old Stony Brook product is in his eighth MLB season and owns a .167/.286/.167 with three steals in 43 games with the Mets this season. The 2012 first-round pick of the Padres has never had much pop (just nine homers in 469 career MLB games) but does possess strong speed and defensive ability in the outfield.

To make room for Jankowski on the 40-man roster, the Mariners designated left-handed pitcher Danny Young, 28, for assignment. Seattle added Jankowski to the active roster Tuesday, optioning outfielder Jack Larsen to Double-A Arkansas in a corresponding move. Larsen joined the M’s in a pinch Sunday, starting in right field and making one plate appearance before being replaced by Jarred Kelenic, who was a late arrival from Triple-A following an early-morning flight from Seattle.

Misiewicz, 27, has appeared in 17 games for the M’s this season but hasn’t pitched in the majors since June 1. He was designated for assignment Sunday.

With Castillo reporting Monday, the Mariners optioned left-handed pitcher Brennan Bernardino to Triple-A Tacoma. The 30-year-old Bernardino was called up Sunday and made his MLB debut, taking the loss in Seattle’s 10-inning loss to Houston.

Castillo will make his M’s debut in Wednesday’s series finale against Gerrit Cole and the Yankees.

The Mariners also announced Monday that outfielder Marcus Wilson, who had been designated for assignment on Saturday, has cleared waivers and been outrighted to Tacoma.

Bigger moves were made Monday by teams the Mariners have their eyes on, however. The Astros, who hold the lead above Seattle in the American League West, reportedly made trades for Baltimore slugger Trey Mancini (in a three-team deal that also involved Tampa Bay) and Boston catcher Christian Vázquez. Then the Yankees, who the Mariners were said to have beaten out in the sweepstakes to get Castillo from the Cincinnati Reds, picked up the most coveted remaining starting pitcher, Oakland’s Frankie Montas, along with reliever Lou Trivino for a package of prospects.

Seattle opens a three-game series against the AL-leading Yankees at 4:10 p.m. Monday. Coverage will be carried on Seattle Sports Station 710 AM, SeattleSports.com and the Seattle Sports app beginning with the pregame show at 3.

Here is the Mariners’ lineup for Monday:

New series in New York 🗽 pic.twitter.com/7Wj1koSayO

— Seattle Mariners (@Mariners) August 1, 2022

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