Thomas Martin Brennan (born October 30, 1952) is a former pitcher in Major League Baseball. He pitched from 1981 to 1985 for the Cleveland Indians, Chicago White Sox and Los Angeles Dodgers.

Brennan was known for an unusual right-handed pitching delivery. From the set position, he would lift his left leg, bent at the knee, and hold it in the air for several seconds. Then, he would quickly uncoil into a side-arm, "submarine-style", delivery.

[ Source: Wikipedia ]