Florin Segărceanu
When John McEnroe won Wimbledon in 1983 , Segărceanu was the only player to take a set off McEnroe throughout the entire championship when he won the first set of their second round match . 
<triplet> Wimbledon in 1983 <subj> John McEnroe <obj> winner <subj> 1983 <obj> point in time