Exhibit 99.1

News release via Canada NewsWire, Toronto 416-863-9350

     Attention Business Editors:
     Sun Life Assurance Company of Canada announces intention to redeem 6.65%
     Debentures, Series 3, due October 12, 2015

     TORONTO, Sept. 2 /CNW/ - Sun Life Assurance Company of Canada ("Sun Life
Assurance") today announced that it will redeem all of the outstanding $300
million principal amount of 6.65% Debentures, Series 3, due October 12, 2015,
(the "Debentures") issued by Clarica Life Insurance Company ("Clarica"), in
accordance with the redemption terms attached to the Debentures.
     All of the issued and outstanding Debentures will be redeemed on October
12, 2010 (the "Redemption Date") at a redemption price equal to the principal
amount of the Debentures together with accrued and unpaid interest to the
Redemption Date. Interest on the Debentures shall cease to accrue from and
after the Redemption Date.
     Sun Life Assurance and Clarica were amalgamated on December 31, 2002
under the name Sun Life Assurance Company of Canada. Sun Life Assurance is a
member of the Sun Life Financial group of companies.

     About Sun Life Financial

     Sun Life Financial is a leading international financial services
organization providing a diverse range of protection and wealth accumulation
products and services to individuals and corporate customers. Chartered in
1865, Sun Life Financial and its partners today have operations in key markets
worldwide, including Canada, the United States, the United Kingdom, Ireland,
Hong Kong, the Philippines, Japan, Indonesia, India, China and Bermuda. As of
June 30, 2010, the Sun Life Financial group of companies had total assets
under management of $434 billion. For more information please visit
www.sunlife.com.
     Sun Life Financial Inc. trades on the Toronto (TSX), New York (NYSE) and
Philippine (PSE) stock exchanges under the ticker symbol SLF.

     Note to Editors: All figures in Canadian dollars.

     %CIK: 0001097362

     /For further information: Media Relations Contact: Frank Switzer,
Vice-President, Corporate Communications, Tel: 416-979-4086,
frank.switzer(at)sunlife.com; Investor Relations Contact: Phil Malek,
Vice-President, Investor Relations, Tel: 416-204-8163,
investor.relations(at)sunlife.com/
     (SLF. SLF)

CO:  Sun Life Financial Inc.

CNW 15:50e 02-SEP-10