About John Alexander (Australian politician)
John Gilbert Alexander (born 4 July 1951), nicknamed JA, is an Australian former professional tennis player, sports broadcaster, and federal politician. As a tennis player, Alexander reached a career-high singles rank of no. 8 in the world in 1975. He reached the semi-finals of the Australian Open singles on three occasions, and won the doubles in 1975 and 1982. He also played on the Australian team that won the 1977 Davis Cup. After the end of his playing career, Alexander worked as a tennis commentator and managed various sports-related businesses. He was a commentator for Seven Sport, the host broadcaster of the Australian Open, for more than two decades, from the late 1980s until the early 2010s, becoming the main play-by-play commentator for men's singles prime time matches in the new millennium, alongside John McEnroe and from 2005 Jim Courier. JA's final commentary duties at the Australian Open were in 2010, thereafter he moved into politics, winning his seat at the 2010 Australian federal election. Alexander won the Division of Bennelong for the Liberal Party at the 2010 election, and retained the seat in 2013 and 2016. He resigned on 11 November 2017 due to constitutional ineligibility arising from his dual citizenship of the United Kingdom. He renounced his UK citizenship and stood as the Liberal Party candidate at the by-election, held on 16 December 2017, which he won. In November 2021, Alexander announced his retirement from politics. He also played in the Australian team that won the 1977 Davis Cup.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.