One of the biggest adjustments Yokohama BayStars rookie pitcher Yuya Sakamoto made on Saturday was wearing a hat one size smaller than usual.

When the left-hander pitched for Ritsumeikan University, his cap had a tendency to come flying off, and he was under orders from the BayStars to keep the rebellious piece of clothing under control.

"There would be a pitching change if it flew off three times," Sakamoto said Saturday with a slight smile, repeating what he was told by pitching coach Atsushi Kizuka.