His baseball career included a stint with the Oakland Athletics and ended with the Olympic gold medal team in the 2000 games in Sydney, Australia.

He was selected to four all-star teams and was a key player in the Vancouver Canadians' 1999 AAA World Series victory.

[citation needed] Neill led the 2000 USA Olympics team to a 4–0 win over Cuba in the gold-medal game with a first-inning home run and a dramatic sliding catch in the ninth inning.

[citation needed] His walk-off homer against Japan won the team's first-round Olympic contest.

[citation needed] During the 1999 Pan American Games he had the game-winning hit to clinch the Olympic berth for the USA.