Aon Logo Featured on New Manchester United Team Shirt

Firm Commemorates Shirt Reveal with 'Aon United Global Day'

CHICAGO, July 15, 2010 - The new Manchester United home kit for the 2010-11 season was revealed
today, with the logo of Aon Corporation (NYSE: AON), the leading global
provider of risk services and human capital consulting, featured on the front
of the famous shirt. Aon's four-year shirt sponsorship of the Manchester
United Football Club was launched on June 1, 2010.

    (Logo: photos.prnewswire.com/prnh/20041215/CGW049LOGO)
    (Logo: www.newscom.com/cgi-bin/prnh/20041215/CGW049LOGO)

"The Manchester United shirt is an iconic image in the world of sport,
and we are honored to appear on it," said Greg Case, president and chief
executive officer of Aon. "Starting today millions of people worldwide will
begin to know yet another leading team: Aon."

Case said that in honor of this historic occasion, every one of Aon's
36,000 global colleagues will receive a Manchester United team shirt.

The Aon logo is featured on the front of the shirt. Inside the shirt on
the back of the club crest is the mantra of Manchester United - "Believe."
That message sits next to the heart, revealing the inner pride of every
Manchester United fan while the symbolic Red Devil rests on the sleeve of the
shirt and the shorts to add the finishing touches to the kit.

The new home kit combines elements of the club's history with new age
technology - as every shirt has been made entirely from recycled polyester
and each created from up to eight plastic water bottles as part of Nike's
"Considered Design" program. You can learn more about the new Manchester
United home kit by visiting www.manutd.com and www.nike.com.

David Gill, Chief Executive Officer of Manchester United, said, "We're
delighted to be launching our latest Manchester United shirt and the first to
bear the Aon logo. We're incredibly proud of our association with Aon and
look forward to achieving great things, both on and off the pitch, through
our partnership with them."

Case noted, "Our sponsorship of Manchester United is an important
amplifier of our Aon United vision - to work together as one team for
clients, for colleagues and for communities in order to grow our firm. This
shirt sponsorship creates an opportunity for us to unite our firm while
telling the world who we are and the value we bring to clients."

Aon has dedicated July 15 as "Aon United Global Day," demonstrating Aon
and Manchester United's shared commitment to serving their communities.

In Chicago, a series of events will take place at Millennium Park to
support children of the Chicago Park District and Special Olympics Chicago,
as well as LifeSource Blood Center. Around the world, Aon's 36,000 colleagues
in over 120 countries will be participating in fundraising and volunteer
activities, including supporting hundreds of schools, children's hospitals,
orphanages and community centers as well as more well-known organizations
such as Big Brothers Big Sisters Clubs, Junior Achievement, Ronald McDonald
House, Special Olympics, UNICEF, United Way, and the YMCA.

For example, in Botswana, Aon colleagues will partner with the House of
Hope orphanage by providing furniture donations and helping to clean and
improve the facility. Aon's Singapore office will host an indoor football
match for the young people served by Boys' Town and will support the
organization's new building fund. Aon Bangalore has "adopted" a local
elementary school that it will support throughout the coming year with both
charitable donations and volunteer service. In Bolivia, Aon colleagues will
donate to Hogar de Ninos Alaly, helping to plant trees on the orphanage
grounds and creating art projects with the children who live there. In
Sacramento, California, Aon colleagues are partnering with Project 680 by
collecting hygiene supplies to distribute to homeless youth. In the
Netherlands, Aon colleagues will participate in a charity bike ride and sell
Right to Play merchandise to help raise funds for youth sports programs in
disadvantaged areas.

Visit www.aon.com/unitedin2010 for more information on Aon's
sponsorship of Manchester United.

About Aon

Aon Corporation (NYSE: AON) is the leading global provider of risk
management services, insurance and reinsurance brokerage, and human capital
consulting. Through its more than 36,000 colleagues worldwide, Aon delivers
distinctive client value via innovative and effective risk management and
workforce productivity solutions. Aon's industry-leading global resources and
technical expertise are delivered locally through more than 500 offices in
more than 120 countries. Named the world's best broker by Euromoney
magazine's 2008, 2009 and 2010 Insurance Survey, Aon also ranked highest on
Business Insurance's listing of the world's largest insurance brokers based
on commercial retail, wholesale, reinsurance and personal lines brokerage
revenues in 2008 and 2009. A.M. Best deemed Aon the number one insurance
broker based on brokerage revenues in 2007, 2008 and 2009, and Aon was voted
best insurance intermediary, best reinsurance intermediary and best employee
benefits consulting firm in 2007, 2008 and 2009 by the readers of Business
Insurance. Visit www.aon.com for more information on Aon and
www.aon.com/unitedin2010 to learn about Aon's global partnership and
shirt sponsorship with Manchester United.

About Manchester United

Manchester United is the biggest football club in the world. It has an
estimated 333 million fans across the globe. Its home at Old Trafford
celebrates its centenary in 2010 and reflects the rich history that surrounds
the Club. The first English Club to compete in the European Club, its
visionary manager Sir Matt Busby later led the team to the first English
triumph in that competition in 1968. In modern times, Sir Alex Ferguson -
also knighted by HM The Queen for his outstanding contribution to football -
has led the Club to more European, domestic and world success.

    For further information, please contact:

    Phil Townsend
    Manchester United
    T: +44-(0)161-868-8148
    pressoffice@manutd.co.uk

    Vicky Owens
    Manchester United
    T: +44-(0)161-868-8427

    David Prosperi
    Aon Corporation
    T: +1-312-381-2485
    david_prosperi@aon.com

    David Bogg
    Aon Corporation
    T: +44-(0)20-7522-4016
    David.bogg@aonbenfield.com

Phil Townsend, +44-(0)161-868-8148, pressoffice at manutd.co.uk, or Vicky Owens, +44-(0)161-868-8427, both of Manchester United; or David Prosperi, +1-312-381-2485, david_prosperi at aon.com, or David Bogg, +44-(0)20-7522-4016, David.bogg at aonbenfield.com, both of Aon Corporation. NOTE TO EDITORS: Photos of today's shirt launch in NikeTown Chicago will be available from 10am BST on July 15 via gettyimages.com