Originally Posted by BeHappy
Not necessarily, look at Lendl's record in grand slams. He definitely could have used some killer instinct, at least in the first half of his career.
A player with no killer instinct might be good enough to get ten chances (break points, set points, match points, whatever), but might only be able to take one.
A player with a strong killer instinct might only be good enough to earn one such chance, but he might only need one too.
Speaking of Lendl, I remember a round robin tournament where they had "dead rubber" matches that were only used to determine how the top players in their flights would get seeded in the semis. In the first match, Borg was upset by Gene Mayer (most likely because it was a meaningless match). Then Connors and Lendl played next. The winner of the match would play Borg in the semis and the loser would play Mayer. Connors with his "killier instinct" beat Lendl very easily and, of course, Lendl didn't seem to care. The semifinals ended up exactly as you would expect and it was Borg who beat Lendl in the finals. Maybe "killer instinct" isn't always so good! LOL