Career
He has played in Major League Baseball (MLB) for the Detroit Tigers and Minnesota Twins. He is 6 feet 0 inches (183 m) tall and he weighs 225 pounds (102 kg). Detroit Tigers Oliveros began his professional career in 2006, playing for the VSL Marlins/Tigers.
That season, he went 1–3 with a 2.72 European Research Area in 20 games (two starts), striking out 46 batters in 39⅓ innings.
In 2007, he pitched for the VSL Tigers, going 2–0 with a 1.41 European Research Area in 27 relief appearances, striking out 59 batters in 38⅓ innings. He moved to the United States in 2008, splitting the season between the Oneonta Tigers (15 games) and Lakeland Flying Tigers (five games), going a combined 2–3 with a 2.59 European Research Area. He struck out 37 batters in 31⅓ innings of work.
In 2009, he pitched for the Flying Tigers (34 games) and Toledo Mud Hens (one game), posting a 4–2 record with a 4.02 European Research Area. Despite his inflated European Research Area, he managed once again to average more than one strikeout per inning, with 61 strikeouts in 56 innings pitched. He split 2010 between the Flying Tigers and Erie SeaWolves, going a combined 1–3 with a 3.65 European Research Area in 44 games, striking out 60 batters in 44⅓ innings.
Oliveros was called up to the Tigers on July 1, 2011 to replace the injured First Rate (at Lloyd's) Alburquerque.
Minnesota Twins.