Jon Singleton

On April 2, 2020, Singleton signed with the Diablos Rojos del México of the Mexican League.

On May 21, 2018, he was released by the organization while serving a 100 game suspension in the final year of his contract.

On November 19, 2016, Singleton was placed on outright waivers by the Astros. He cleared waivers on November 22 and was assigned to Fresno. He played the 2017 season with the Corpus Christi Hooks of the Class AA Texas League, and led all minor leaguers with 500 or more plate appearances with a walk percentage of 26.4%.

The Astros optioned Singleton to the Fresno Grizzlies of the PCL to start the 2015 season. On May 13, 2015, Singleton recorded 10 RBIs, including a grand slam and two-run home run. His 10 RBIs was one short of the modern day PCL record. Singleton had 22 RBI in a five-day span, including 18 in Fresno's four game series in Albuquerque from May 12–15, which included two grand slams.

Following the 2013 season, the Astros added Singleton to their 40 man roster. On June 2, 2014, the Astros signed Singleton to a 5-year contract that guaranteed him $10 million, and could have been worth as much as $35 million. The extension was the first to be signed by a drafted player with no major league experience. Singleton was promoted from the Oklahoma City RedHawks of the Class AAA Pacific Coast League (PCL) to make his major league debut on June 3.

Singleton made his major league debut for the Astros on June 3, 2014 against the Los Angeles Angels of Anaheim. In his first game, he went 1–3 with a home run, 2 RBI's, a walk, and two strikeouts. His first home run, a solo home run, was off of Matt Shoemaker. On June 8, Singleton lined his first career grand slam off of Glen Perkins of the Minnesota Twins at Target Field to help the Astros to a 14–5 win. Teammates Dexter Fowler, Chris Carter, and George Springer also homered (Carter's was also a grand-slam).

On August 2, 2014, Singleton hit an Inside-the-park home run against the Toronto Blue Jays. It was initially ruled an out by the home plate umpire, but was later reversed following a challenge by Astros manager Bo Porter.

Singleton tested positive for marijuana in June 2012. He competed in the Arizona Fall League that offseason, and had a second positive test for marijuana in December. On January 9, 2013, Singleton was suspended for 50 games due to his second failed drug test. Singleton said that he had grown up around friends who used the drug and that he had been using it "on and off" since he was 14 years old. He spent a month in a rehabilitation center after the second failed test.

Prior to the 2011 season, Singleton was considered the Phillies' second best prospect by Baseball America.

On July 29, 2011, the Phillies traded Singleton, Jarred Cosart, Josh Zeid, and Domingo Santana to the Houston Astros in exchange for Hunter Pence. Baseball America designated Singleton as Houston's top prospect following the 2011 season. He was named to appear in the 2012 All-Star Futures Game.

After growing up in Long Beach, California, Singleton was drafted by the Philadelphia Phillies in 2009. He was one of several prospects traded to the Astros in exchange for Hunter Pence in 2011. He signed a $10 million contract with the Astros before making his major league debut in 2014, but he struggled, last playing for the Astros in 2015 before they relegated him to the minor leagues and releasing him in 2018.

Singleton played baseball at Millikan High School in Long Beach, California. He committed to play at California State University, Long Beach a few months before the 2009 Major League Baseball Draft.

The Philadelphia Phillies selected Singleton in the eighth round of the 2009 MLB Draft. He had been projected for selection as high as the second round of the draft, but his senior year statistics caused him to fall a few rounds. Singleton reported to the Gulf Coast League Phillies, where he played 31 minor league games that year. He spent 2010 with the Class A Lakewood BlueClaws, where he hit for a .290 batting average, 14 home runs and 77 runs batted in (RBI).

Jonathan Lee Singleton (born September 18, 1991) is an American professional baseball first baseman for the Diablos Rojos del México of the Mexican League. He played in Major League Baseball (MLB) for the Houston Astros in 2014 and 2015.