Absolutely -- capable of pushing good players on all surfaces. Then again Borg used to face match points in early rounds at Wimbledon in his prime. Some great players are like Nadal and maintain a very high level of play in each round of a tournament, others are vulnerable early on.
This is not at all true. Borg never faced a match point against him in any grand slam that he won. Here are the male players who have saved at least one match point on the way to winning grand slam tournaments:
Gerald Patterson 1927 Australia Final John Hawkes
Dinny Pails 1947 Australia Final John Bromwich
Rod Laver 1960 Australia Final Neale Fraser
John Newcombe 1975 Australia SF Tony Roche
Johan Kriek 1982 Australia SF Paul McNamee
Stefan Edberg 1985 Australia R16 Wally Masur
Marat Safin 2005 Australia SF Roger Federer
Rene Lacoste 1927 Roland Garros Final Bill Tilden
Gottfried von Cramm 1934 Roland Garros Final Jack Crawford
Rod Laver 1962 Roland Garros QF Marty Mulligan
Adriano Panatta 1976 Roland Garros R128 Pavel Hutka
Gustavo Kuerten 2001 Roland Garros R16 Michael Russell
Gaston Gaudio 2004 Roland Garros Final Guillermo Coria
Henri Cochet 1927 Wimbledon Final Jean Borotra
Bob Falkenburg 1948 Wimbledon Final John Bromwich
Ted Schroeder 1949 Wimbledon QF Frank Sedgman
Neale Fraser 1960 Wimbledon QF Butch Buchholz
Fred Perry 1936 United States Final Don Budge
Manuel Orantes 1975 United States SF Guillermo Vilas
Boris Becker 1989 United States R64 Derrick Rostagno
Pete Sampras 1996 United States QF Alex Corretja
Andy Roddick 2003 United States SF David Nalbandian