Ubaldo Jimenez is a former professional baseball player who played as a pitcher in Major League Baseball (MLB). He was born on January 22, 1984, in Nagua, Dominican Republic. Jimenez began his professional baseball career in 2001 when he signed with the Colorado Rockies as an amateur free agent.

Jimenez made his MLB debut on September 26, 2006, for the Rockies. He played for the Rockies from 2006 to 2011 and was one of the team's most successful pitchers during his time there. In 2010, Jimenez had a breakout season, finishing with a 19-8 record and a 2.88 ERA. He was named to the All-Star team and finished third in the National League Cy Young Award voting.

In 2011, Jimenez was traded to the Cleveland Indians. He played for the Indians from 2011 to 2013 and was a solid pitcher for the team. In 2013, Jimenez had a 13-9 record and a 3.30 ERA. He helped lead the Indians to the playoffs, where they lost in the American League Wild Card game.

After his time with the Indians, Jimenez played for the Baltimore Orioles from 2014 to 2017. He struggled during his first two seasons with the Orioles, but had a bounce-back season in 2015, finishing with a 12-10 record and a 4.11 ERA.

Jimenez retired from professional baseball in 2018. Over the course of his career, he had a 114-117 record and a 4.34 ERA. He struck out 1,720 batters and walked 766 in 1,870 innings pitched. Jimenez was known for his fastball, which could reach speeds of up to 100 miles per hour, as well as his slider and splitter.

Off the field, Jimenez was involved in several charitable organizations. He founded the Ubaldo Jimenez Foundation, which provides assistance to underprivileged children in the Dominican Republic. Jimenez was also involved with the Orioles' community outreach programs, including the OriolesREACH program, which supports various charitable initiatives in the Baltimore area.

In conclusion, Ubaldo Jimenez was a successful pitcher in MLB, playing for the Colorado Rockies, Cleveland Indians, and Baltimore Orioles. He had a breakout season in 2010 and was named to the All-Star team. Jimenez retired in 2018 with a 114-117 record and a 4.34 ERA. He was also involved in several charitable organizations off the field.