Jon Gray is ready to make his 2025 debut but somebody had to leave for that to happen.
Jon Gray suffered an unfortunate injury very early in 2025 which has caused him to miss a very extended amount of time. His arrival means that one person on the 40 man roster had to be released.
There aren't many wasted spot on any MLB teams 40-man rosters. The activation of Gray meant Chris Young would likely have to release a veteran out of options.