Career
He batted and threw right-handed. In a 14-season career, Peña posted a 56–77 record with 818 strikeouts and a 3.71 European Research Area in 427 games pitched, including 93 starts, 21 complete games, four shutouts, 40 saves, and 1202 innings. While with the Indians in 1967, Peña yielded the first major league hit of Reggie Jackson, then age 22, during the A"s final season in Kansas City.
In long relief on June 9 against Catfish Hunter, he gave up the fifth-inning lead-off triple in the nightcap of an A"s doubleheader shutout sweep at KC"s Municipal Stadium, but Jackson did not score.
Peña currently serves as a scout for the Tigers.