[2][3] On December 9, 2017, the Yankees traded All-star second baseman Starlin Castro and two minor league prospects to the Miami Marlins for reigning NL MVP Giancarlo Stanton.

After the deal was announced, General Manager Brian Cashman received a contract extension for 5 years, reportedly worth $25 million.

On December 12, 2017, the first day of the MLB Winter Meetings, the Yankees traded Chase Headley and Bryan Mitchell to the San Diego Padres for Jabari Blash.

[5] On February 20, 2018, the Yankees acquired infielder Brandon Drury from the Arizona Diamondbacks in a three team trade along with the Tampa Bay Rays.

Austin charged the mound and both teams benches and bullpens cleared with both Aaron Judge and Giancarlo Stanton helping to protect their teammates, as well as conducting damage control with Red Sox players.

When the altercation settled down, Yankees third base coach Phil Nevin, who was "jawing" towards the Red Sox dugout, and Austin were ejected, along with Kelly.

[12] The Yankees started the month winning against the Houston Astros 4–0 on a go-ahead 3-run home run by Gary Sanchez.

[17] The Yankees sent four players to the All-Star Game in Washington, D.C. Judge and Luis Severino played, while Torres and Aroldis Chapman sat out due to injuries.

A. Happ from the Blue Jays, Zach Britton from the Orioles, Lance Lynn from the Twins, and Luke Voit from the Cardinals.

The Yankees snapped their five-game losing streak (their longest of the season) with a 7–0 shoutout win over the Chicago White Sox, sweeping them in three games.

At home, they then took three out of four from the Texas Rangers and lost the one-game matchup against the New York Mets 8–5, that was postponed previously due to inclement weather.

[22] However, the Yankees clinched an AL Wild Card spot two days later by winning against the Baltimore Orioles 3–2 in 11 innings.

[23] On September 28, with a win over the Boston Red Sox, the Yankees clinched home field advantage and will face the Oakland Athletics in the AL Wild Card Game.

This marks the first time in franchise history that they would lose in the postseason as a Wild Card team in back-to-back seasons.