The only thing he had to fear was a very bad split in the heart suit.
She may not have been playing with a full deck, but the heart suit was intact.
After the expected lead of a heart suit, South would have had two chances.
Should he sell out or support his partner's heart suit at the level of five?
South could make no use of the heart suit and failed by two tricks.
He had only seven tricks available, and the heart suit was wide open.
West had passed originally and was known to have a very long heart suit.
Shows a weak hand, 5-9 points, with a long heart suit.
West had a lead problem, and knew that the heart suit would not take him far.
There was no future in the heart suit, and apparently none for the defense.