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MFS(R)/SUN LIFE SERIES TRUST: BOND SERIES
Supplement to the Current Prospectus
The description of portfolio managers under the "Management of the Series"
section is hereby restated as follows:
Geoffrey L. Kurinsky, a Senior Vice President of MFS, has been employed in the
investment management area of MFS since 1987. Mr. Kurinsky has been the series'
portfolio manager since 1998. William Adams, a Vice President of MFS, has been
employed by MFS in the investment management area since 1997. Mr. Adams became a
portfolio manager of the series effective July 1, 2000.
The date of this Supplement is July 3, 2000.
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MFS(R)/SUN LIFE SERIES TRUST: GLOBAL TOTAL RETURN SERIES
Supplement to the Current Prospectus
The description of portfolio managers under the "Management of the Series"
section is hereby restated as follows:
Frederick J. Simmons, a Senior Vice President of MFS, has been employed in the
investment management area of MFS since 1971 and has been the fund's portfolio
manager since 1994. Steven R. Gorham, a Vice President of MFS, has been employed
by MFS in the investment management area since 1989 and became a portfolio
manager of the fund effective May 1, 2000. Mr. Simmons and Mr. Gorham are
managers of the common stock portion of the fund's portfolio. Stephen C. Bryant,
a Senior Vice President of MFS, has been employed in the investment management
area of MFS since 1987 and became a portfolio manager of the fund effective July
1, 2000. Mr. Bryant is a manager of the fixed income portion of the fund's
portfolio.
The date of this Supplement is July 3, 2000.