He also had success playing with the Daikyo Dolphins in the Australian Baseball League in 1991 and 1992 alongside Brewers and 1999 All-Star teammate, Dave Nilsson.

[1] Earlier in 1992, while playing for Brewers Triple-A affiliate Denver, Jaha became only the second player (after Joey Meyer) to hit a ball into the upper deck at Mile High Stadium.

[2] Despite the strong season, he was not selected to the All-Star team, having to contend with Frank Thomas, Mark McGwire, and Mo Vaughn for the first base position.

Earning his first All-Star berth along the way, he finished the season with 35 home runs (tying Dave Kingman for most by an Oakland designated hitter) and 111 RBIs and was named the American League Comeback Player of the Year.

A popular figure in the Oakland Athletics clubhouse, he drew a standing ovation from his A's teammates when he announced his retirement on June 30, 2001.