It's funny that people should mention snooker. Big Bill Werbemiuk famously drank 6 pints of lager before each match and drank one pint for every frame, in order to counteract the problems he had making shots caused by essential tremor. He started taking propranolol because of the effect the drinking had on his heart, and then had to retire from snooker because propranolol was banned.
Well this reminds me of the professional darts tour some 20 years ago - all players shown drinking beers and smoking cigarettes all the time.
Of one of the players, Andy Fordham aka "The Viking", it was said that he drunk TWO CRATES of beer during every match!
Ah, those were the days...