EntityQ737425· pop 18· linked from 1,006 articlesAlex O'BrienSign in to saveUS tennis playerListeners · Last.fmListeners16Total plays90 <a href="https://www.last.fm/music/Alex+O%27Brien">Read more on Last.fm</a>via Last.fm · Alex O'BrienConnections1999 US Open – men's doublesEntity1997 Australian Open – men's doublesEntityCategories1970 births20th-century American sportsmenAmerican male tennis playersATP number 1 ranked doubles tennis playersBLP articles lacking sources from July 2025Grand Slam (tennis) champions in men's doublesLiving peopleOlympic tennis players for the United StatesSportspeople from Amarillo, TexasStanford Cardinal men's tennis playersTennis players at the 2000 Summer Olympics