Psychologists are for people from any walk of life who have mental complexes, not for athletes who get stage fright, are intimidated or can not cope with the stress of going to work. Please stop insulting me.'Sports psychology' wouldn't be a professional field if players never came under pressure. You have been saying many absurd things and this is no different.
If you want to see a pretty much lone example of a team falling apart at the seams, check out this one. Between a combination of bad playing, bad luck, good hitting, an angry crowd, and some amount of taunting, the Rangers lost their way. https://www.youtube.com/watch?v=1V8W6_bD7bE But you will notice that the Blue Jays had bad luck too and did not let it affect them at all.
Also same video addresses the poster who said there is not much variety in the outcome of baseball games. He could not be further off.