After going through modest winning seasons during most of the 1920s, the Packers began to build a championship-caliber team, as they signed three future Hall of Famers in "Johnny Blood" McNally, Cal Hubbard, and Mike Michalske. The Packers won their first NFL Championship in 1929 with a 12-0-1 record, the only undefeated season in Packers history. Their only blemish was a tie with the Frankford Yellow Jackets. The Packers were able to successfully defend their title in 1930, going 10-3-1, and won their third straight league championship in 1931 with a 12–2 record. The Packers nearly won a record fourth straight championship in 1932, going 10-3-1, but finished second behind the Chicago Bears and Portsmouth Spartans, who shared the best record in the league.