A month shy of his 55th birthday, Unser entered the 1994 race with Arizona Motorsports, hoping to qualify for what would be his 28th Indy 500. The team was very underfunded, and Unser had considerable trouble getting the car up to speed. On the first weekend of qualifying, he waved off after a poor qualifying lap. After some minimal practice the following day, he quit the team. He announced his retirement on May 17, 1994. His son Al Unser Jr. won the Indianapolis 500 on his father's 55th birthday.