Is it true that POLO sport can only be played right handed?  

i am sorry to say but never heard this kind of stuff before.
It dosen't make any sense that it can only be played
by right handed people. According to me right can also be used for riding the pony and left for striking the ball.

i know nothing about polo. but it shouldn't realy matter what hand you play with. just being left handed, makes it easier for the ball to be stolen, but the same goes for those who are right handed playing against you. i've played polo-x, left handed, not very well. but it's the same rules. i also tent peg, left handed, mean i have to ride frist, and faster.

POLO SPORT can be both played either right handed or left handed person. It will surely a good strategy to defense the ball by hitting by the opponent since the visibility of the ball is small chance.