John Gilbert Alexander (born 4 July 1951), nicknamed JA, is an Australian former professional tennis player, sports broadcaster, and federal politician.

Joining Seven in 1986, he provided play-by-play commentary and other duties for the network's Australian Open telecasts for 23 years, as well as appearing on other programs for ATN-7 Sydney, such as Seven News and 1990s reality show Gladiators.

Alexander worked with colleagues including Peter Landy, Garry Wilkinson, Allan Stone, Sandy Roberts, Bruce McAvaney and Johanna Griggs, as well as John McEnroe in the early 2000s and Jim Courier from 2005 to 2010 (who remains in this position to this date, now with the Nine Network).

As managing director of Next Generation Clubs Australia, Alexander designed and built sport and fitness clubs; including the Ryde Aquatic Centre in Sydney to host the 2000 Summer Olympic Games water polo event, the development of Memorial Drive in Adelaide into a multi-function health and fitness facility, and Royal King's Park in Perth.

[6] Alexander delivered his maiden speech to parliament on 28 October 2010,[7] detailing his particular interest in areas of preventative health, infrastructure, transport and sustainable growth.

In October 2011 Alexander ran the inaugural Bennelong Cup Table Tennis Test match, involving players from China, Korea and Australia playing in a formal competition in Ryde, a suburb within his constituency.

The Bennelong Cup has continued every year since with an interschool tournament followed by international competition in Ryde, preceded by exhibition matches in Parliament House, Canberra.

Following this he was appointed chair of the House Standing Committee on Economics, where he instigated an inquiry into home ownership and opportunities for tax reform.

[11] Following Malcolm Turnbull's ascension to Prime Minister John Alexander was appointed chair of the newly formed House Standing Committee on Infrastructure, Transport & Cities, where he commenced an inquiry into transport connectivity, regional development, high speed rail and the use of value capture as an innovative funding mechanism.

[12] Alexander also served as chair of the Coalition Policy Committees on Infrastructure & Regional Development, and on Tourism, of the Sydney Airport Community Forum, and of the Australia-East Asia Parliamentary Network.

The video displays Alexander telling racist jokes at an end of year party with film crew from the 1990s TV show Gladiators.

Alexander's high profile opponent in the by-election, Kristina Keneally, appeared with then opposition leader Bill Shorten in Eastwood to respond to the incident.

[18] At a press conference, Mr Shorten denied allegations that Labor had deliberately sourced the video in an attempt to bait Alexander during the campaign.

Bainimarama had asked the Australian Government to "please stop burning coal, you know the water level's just coming up and it's threatening our communities", to which Alexander responded "move to higher ground".

Alexander later appeared on ABC Radio, clarifying the nature of his remarks by saying that adaptation was "a priority [...] we must also act to prevent further damage to our planet".

[21] Shortly following his announcement, Alexander spoke with Paul Bongiorno of The Saturday Paper, reflecting on his experiences and time in office.

Bongiorno's opinion piece later writes that Alexander 'reserves his biggest salvos for the leadership of the Coalition government: Scott Morrison, Josh Frydenberg and Barnaby Joyce', and feels that 'if Labor’s Anthony Albanese wins the election, policies more fit to serve the national interest rather than narrow sectional interest might be served'.