The Atlanta Braves are expected to be sellers at this year's trade deadline, meanwhile their NL East rivals in the Phillies and Mets are looking to improve.

The Phillies, who have been searching for relief pitching help throughout the season, have agreed to sign veteran reliever David Robertson, reports The Athletic. It's a deal for the rest of the season for $16 million, prorated for just the remainder of the Phillies' games, reports MLB.com, or roughly $6 million.

Explore the latest MLB rumors for the Braves and Mariners as the trade deadline approaches and Ronald Acuna Jr.'s future remains in question.

The Atlanta Braves have struggled mightily this season, but they are not willing to sell Chris Sale or their other long-term core players.

MLB.com's Mark Bowman labeled a three-time All-Star a trade candidate for the Atlanta Braves in the middle of his career-worst season.

Braves Rumors: Atlanta is going to buy at the trade deadline and we're ranking the 12 best (and realistic) trade targets for the Braves before Aug. 1.

The Atlanta Braves could reportedly have a backup option for the Cincinnati Reds at the upcoming MLB trade deadline.

The Braves designated outfielder Stuart Fairchild for assignment to clear roster space for a third catcher. Read more at MLB Trade Rumors.