In Bustle’s The Pregame, we ask athletes about their pregame rituals. Do they have any superstitions? How do they get in the zone? Here, we chat with the Aryna Sabalenka, the world’s No. 1 ranked singles player, about her warmup routine and good luck jewelry.When Aryna Sabalenka won the Miami Open on March 28, she celebrated in the most low-key way. “We had a pizza night with the team,” the 27-year-old tells Bustle. “We were thinking about going…