that tie was the demise of u.s. davis cup for a few years until agassi came along...the Mac-Connors discord explains the 1984 Davis Cup final debacle against Sweden (1-4).
after that tie they made players sign a good behavior agreement if they wanted to play davis cup again
which mac (and i suppose connors if he wanted to play) refused. i think mac didnt play again until 1987
when they were in the davis cup relegation group