Right, so maybe there was NO (repeat ZERO) opportunity for the pros to win anything like a "Grand Slam"...those are the breaks.How do you call a clear sweep through all pro majors? The pros could only win tournaments that were held.
As was pointed out by another poster here, the pros themselves did not even talk about, let alone publicize, the concept of a "Pro Grand Slam", a term which could only have been invented many years AFTER the pro tour was defunct.