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                  CONTACT:
                  STANDARD FINANCIAL                    TCF
                  Thomas Ryan, Exec. VP, CFO            Cynthia Lee (Investors)
                  (630) 986-7833                        (612) 661-8859
                  Randall Schwartz, VP, Gen. Counsel    Ann Storberg (Investors)
                  (630) 986-7836                        (612) 661-8883
                  Bill Murphy, Financial Relations Bd.  Elizabeth Anders (Media)
                  (312) 640-6764                        (612) 661-8853


                   TCF and Standard Financial Agree to Merge
                          Creating $10 Billion Company


    MINNEAPOLIS, March 17, 1997 - TCF Financial Corporation (TCF) (NYSE:TCB) 
and Standard Financial, Inc. (Standard) (Nasdaq - NNM:STND) today announced a 
definitive agreement to merge, creating a company with a combined $10 
billion in assets and providing access to 276 financial services offices and 
more than 900 ATMs in five midwestern states.

    The transaction is structured as a cash election merger, providing for an 
exchange of TCF common stock and cash for Standard shares. TCF will be the 
surviving corporation in the merger. The transaction is expected to have an 
aggregate value, based on the closing price of TCF common stock on March 14, 
of approximately $424 million, or approximately $25 per Standard common 
share. The transaction value is approximately 160 percent of Standard's book 
value. TCF expects the merger to be accretive to both reported and cash 
earnings in 1998.

    TCF Chairman and Chief Executive Officer William A. Cooper said that 
Standard's retail branch network complements TCF's 35 Illinois bank branches, 
26 of which are in the Chicago




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area. "This union significantly expands our profitable and growing Illinois 
franchise," said Cooper. "Chicago has long been an attractive market for TCF - 
a large, urban-based population receptive to banking convenience - and 
Standard has an exemplary tradition of meeting community banking needs." 
Cooper added that no bank branches will be closed in connection with the 
merger.

    "Joining TCF will accelerate our transformation to a leading consumer 
bank for the benefit of our shareholders, customers, and the communities we 
serve," said Standard Chairman and President David Mackiewich. "We will have 
access to a broader range of products and services, convenient banking 
locations - including seven-day banking at supermarkets and 248 Cash Station 
ATMs - and the financial resources of a dynamic regional bank."

    "We believe this merger will produce long-term revenue enhancements and 
meaningful cost savings," said Cooper. He noted that the strategic plan for 
improving the Chicago franchise follows TCF's community banking philosophy: 
increasing lower interest-cost checking, savings, and money market deposit 
accounts; increasing higher-yielding consumer and commercial loans; 
introducing complementary products and services such as annuities, mutual 
funds, debit cards; and consolidating back-office operations.

    For Standard's stockholders, the transaction will be structured as a cash 
election merger in which holders of Standard's stock will have the right to 
choose either cash or TCF common stock, or a combination of the two. Between 
40 percent and 60 percent of the purchase price will be paid in shares of TCF 
common stock, and the remainder will be paid in cash. The transaction will be 
a tax-free exchange for Standard's stockholders to the extent they receive 
shares of TCF common stock.




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    The exchange ratio for shares of Standard stock will depend on the 
average trading price of TCF stock during the 30 trading days preceding the 
merger. If the average trading price of TCF stock during that period is 
between $43.75 and $47.75, each Standard share will be converted into the 
right to receive consideration having an aggregate value between $24.69 and 
$25.81. If the average trading price of TCF stock is below $43.75 but greater 
than or equal to $37.50, each Standard share will converted into the right to 
receive consideration having an aggregate value of $24.69. If the average 
trading price of TCF stock is above $47.75 but less than or equal to $54.00, 
each Standard share will be converted into the right to receive consideration 
having an aggregate value of $25.81.

    The definitive agreement was signed after completion of due diligence and 
approval of both companies' boards of directors. It is subject to approval by 
Standard's stockholders, and required regulatory filings and approvals. The 
merger is expected to close in the third quarter of 1997 and be accounted for 
as a purchase transaction. Standard has agreed to pay a $15 million 
termination fee if the merger agreement is terminated under certain 
circumstances.

    In connection with the transaction, TCF will record intangibles of 
approximately $200 million.

    After the merger, Standard's bank branches will be combined with TCF Bank 
Illinois. The directors of Standard will join TCF Bank Illinois' board of 
directors. Mackiewich will become executive chairman of TCF Bank Illinois and 
a director of TCF Financial Corporation. Michael B. Johnstone, president and 
chief executive officer of TCF Bank Illinois, will continue in that capacity.




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    TCF will contribute $1 million over five years to Illinois community 
organizations, consistent with TCF's philanthropic giving program which is 
focused on housing and economic development in low-income communities, and 
K-12 education reform.

    In connection with the merger, Standard has announced that it has 
postponed its annual meeting and plans to call a special meeting at which it 
will seek stockholder approval of the merger.

    Standard is a community-oriented thrift institution with $2.4 billion in 
assets and 14 full-service offices on the southwest side of Chicago and in 
the nearby southwestern and western suburbs. Excluding a regulatory special 
assessment, Standard reported record 1996 earnings of $17.7 million, or $1.13 
per share, a return on average assets of 0.78 percent and a return on average 
equity of 6.60 percent.

    TCF is a Minneapolis-based stock savings bank holding company with $7.1 
billion in assets and more than 260 financial services offices. Its bank 
subsidiaries operate in Minnesota, Illinois, and Wisconsin as TCF Bank, and 
in Michigan and Ohio as Great Lakes Bankcorp. Affiliates include consumer 
finance, mortgage banking, title insurance, annuity and mutual fund sales 
companies. Excluding a regulatory special assessment, TCF reported record 
1996 earnings of $107.4 million, or $3.04 per share, a return on average 
assets of 1.56 percent, and a return on average common equity of 20.22 percent.
TCF intends to convert its federal savings bank subsidiaries into national 
banks in the 1997 second quarter, pending all required regulatory approvals.