David Alan Robertson (born April 9, 1985), nicknamed "D-Rob",[1] is an American professional baseball pitcher who is a free agent.

He signed with the White Sox as a free agent after the 2014 season and was traded back to the Yankees in July 2017.

[1] He led the Stampede to an area title and the Class 6A State Playoffs in the school's first year of existence.

[3][4] Due to Robertson being 21 at the time of the 2006 MLB draft, he was a draft-eligible sophomore and the New York Yankees selected him in the 17th round.

[5] After starting the 2009 regular season in Triple-A, Robertson was recalled to MLB on April 16, to replace Xavier Nady, who had been placed on the 15-day disabled list.

[12][1] In the 2009 playoffs, Robertson entered two games in high-pressure situations with multiple runners on base, once in the ALDS and once in the ALCS, and did not allow any runs to score.

[14] The Yankees entered the 2011 season with the additions of relief pitchers Pedro Feliciano and Rafael Soriano.

Robertson lost out to Joba Chamberlain to be the seventh inning specialist whom manager Joe Girardi wanted to bridge to Soriano and closer Mariano Rivera.

[15] Injuries to Feliciano, Soriano, and Chamberlain put Robertson in the eighth inning setup role, where he had 55 strikeouts halfway through the season.

[20] When Rivera went down with a season-ending injury in May 2012, Girardi announced that Robertson and Soriano would share the duties of closing games for the remainder of the season.

[21] Robertson himself was placed on the 15-day disabled list however on May 15, after he strained a muscle in his rib cage, 12 days after Rivera's season-ending injury.

[27] In his lone season as Yankees' closer, Robertson garnered praise as a worthy successor to Rivera.

On November 10, Robertson declined the Yankees' $15.3-million qualifying offer for the 2015 season, making him a free agent.

[31] He limited the first batters he faced to a .100 batting average, the lowest rate in both the AL and in White Sox history.

[1] With the White Sox in rebuilding mode, Robertson became enshrouded in trade rumors during the offseason and regular season.

[32][33] Robertson was nearly traded to the Washington Nationals for Jesus Luzardo and Drew Ward; however, the deal was not completed due to disagreements regarding finances.

[31] On July 18, 2017, the White Sox traded Robertson, Todd Frazier, and Tommy Kahnle to the New York Yankees for Blake Rutherford, Tyler Clippard, Ian Clarkin, and Tito Polo.

[34] In his first appearance after the trade, Robertson struck out the side in the seventh inning to preserve a 5–1 lead against the Seattle Mariners.

[45] Robertson made his Phillies pitching debut on March 28, 2019, at Citizens Bank Park, against the visiting Atlanta Braves.

[46] In 2019, he did not appear in a game after April 14 due to a Grade 1 flexor strain in his pitching elbow; it was determined later that it required season-ending Tommy John surgery.

[50] As of the end of the 2019 season, his career 661 games pitched were eighth-most of all active major league pitchers.

[12] On August 28, 2020, Robertson suffered a setback during his recovery from Tommy John surgery and was immediately shut down from throwing, effectively ending his season without making an appearance.

[52] On July 12, 2021, Robertson signed with the High Point Rockers of the Atlantic League of Professional Baseball, to help prepare for the 2020 Summer Olympics (contested in 2021).

He pitched with the team from July 13 to 15, earning a win and not allowing a run in two appearances out of the bullpen.

Though he struck out against the Pittsburgh Pirates’ Diego Castillo, he is quoted as saying, "made my dream come true”.

[56] On August 2, 2022, the Cubs traded Robertson to the Philadelphia Phillies in exchange for pitcher Ben Brown.

On July 28, 2023, the Mets traded Robertson to the Miami Marlins in exchange for prospects Ronald Hernández and Marco Vargas.

On January 26, 2024, Robertson signed a one-year contract with the Texas Rangers including a mutual option for the 2025 season.

His high strikeout rate has proved useful in critical late-inning situations — in 2011, Robertson struck out 14 of the 19 hitters he faced with the bases loaded and allowed only one hit.