Originally Posted by timnz
I don't think people really appreciate how much easier the career slam has become in recent years. Still a fine achievement yes, but not a fraction as hard as it was pre-2002. It is highly likely that Nadal wouldn't have won Wimbledon once given pre-2002 conditions. Also in the 80s players played on 4 surfaces (remember how important indoor carpet was then?) whereas players now only play on 3. Nadal would struggle greatly on indoor carpet and also on grass.
How can someone who has beaten Federer in Wimbledon "struggle" on grass?