| Arnie Muñoz | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | 21 June 1982 |
| Birth Place: | Mao, Dominican Republic |
| Debutleague: | MLB |
| Debutdate: | June 19 |
| Debutyear: | 2004 |
| Debutteam: | Chicago White Sox |
| Finalleague: | MLB |
| Finaldate: | September 28 |
| Finalyear: | 2007 |
| Finalteam: | Washington Nationals |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 0–1 |
| Stat2label: | Earned run average |
| Stat2value: | 9.15 |
| Stat3label: | Strikeouts |
| Stat3value: | 14 |
| Teams: | |
Arnaldo Rafel "Arnie" Muñoz (born June 21, 1982) is a Dominican former professional baseball pitcher. Muñoz batted and threw left-handed.
Muñoz made his major league debut in for the Chicago White Sox in a start against the Montreal Expos.[1] It was a disaster, as Muñoz allowed eleven runs in three innings (including nine in the second inning alone), tying for third all-time for most runs allowed in a major league debut. By game score, it was the worst debut start since earned runs became official in 1913.[2] Muñoz went back to the minors, then returned in September, pitching fairly well in relief.
Muñoz's contract was purchased by the Washington Nationals in September . Muñoz became the Nationals' left-handed specialist after the team traded Ray King to the Milwaukee Brewers.[3]
Before the start of the season, it was not certain whom the Nationals would use as their left-handed specialist. Although neither was on the 40-man roster, both Muñoz[4] and Ray King[5] were invited to spring training. However, Muñoz was assigned to the Double-A Harrisburg Senators of the Eastern League at the end of the preseason. He became a free agent at the end of the season; he did not play in 2009.
In 2010, Muñoz pitched for Petroleros de Minatitlan of the Mexican League, compiling a 1–2 record and a 2.77 ERA, in what was his last year as a professional ballplayer.