 While he did not catch every inning for the 1944 Reds (backups Len Rice, Joe Just and Johnny Riddle handled 17 total chances in a total of 43 innings caught), Mueller caught 140 complete games and 1,329 innings; he handled 545 chances, threw out 39 percent of would-be base-stealers, and batted a career-high .286 with ten home runs and 73 runs batted in.He was named to the National League All-Star team and caught Clyde Shoun's no-hitter against Boston on May 15, 1944.The following season, , Mueller was called to military service by the United States Army — putting his consecutive game streak on hold until .