why are the best doubles pairs made up of a left-handed and a right-handed person? (Table tennis)

In doubles, the service is imposed in the right diagonal, the one favored by left-handers. They have an advantage because they do not have to shift and adapt their range of services, unlike right-handers. “ A left-hander will serve much better, with more spin and variations », explains Frenchman Florian Bourrassaud, right-handed, qualified for the first time in doubles for the WTT Finals with a left-hander, his compatriot Esteban Dorr.