It was revealed on the 30th that Softbank Hawks pitcher Osuna will not be accompanying the team on their road trip. On that day, the starting pitchers were pitcher at Mizuho PayPay Dome. With a three-game series against Rakuten Eagles (Rakuten Eagles Mobile Saikyo Park Miyagi) starting on the 31st, pitcher coach Shinji Kurano confirmed that Osuna, who missed out on the opening day roster, "will not be accompanying the team (on the road trip)."

The right-handed pitcher agreed to a massive four-year contract worth approximately 4 billion yen in 2023. The memorandum of understanding at the time of signing included the provision for his use as a closer, but in eight exhibition games he gave up four runs with ERA of 4.50. He was not registered as an active player, but he accompanied the first team to practice for the three-game series against Nippon-Ham Fighters at Mizuho PayPay Dome.