Although he was knocked out by the third inning in both contests, Mack purchased his contract after noting that Rommel's curveball was breaking on the inside rather than the outside.

Rommel surrendered ten home runs to Babe Ruth, tying him for tenth place.

However, fellow Athletics pitchers Rube Walberg (17) and Howard Ehmke (13, but nine of them were with other teams) surrendered more, and Rommel gave up the same number of Ruth home runs as teammate George Earnshaw.

On an intense stretch of four home doubleheaders and a single road game in five days, Rommel pitched 17 innings in relief on July 10, 1932, against the Cleveland Indians and earned the win.

[4] Despite his background as a pitcher, Rommel did not tolerate throwing at batters, decrying it as dishonest and not to fans' liking.

He noted that he only threw at a batter once during his own career, on the insistence of catcher Cy Perkins, and that the runner (Ray Schalk) eventually scored and cost him the game.

He was the first umpire in Major League history to wear glasses in a regular season game.