What happened: The Detroit Tigers acquired infielder Tsung-Che Cheng from the Boston Red Sox in exchange for cash considerations. The transaction adds infield depth to Detroit while opening a spot on Boston's 40-man roster.

Why it matters: The acquisition leaves the Tigers with 36 players on their 40-man roster, providing organizational flexibility heading into the winter. For Boston, clearing a roster spot provides room ahead of upcoming offseason reserve list decisions.

What to watch: Both clubs continue shaping their 40-man rosters ahead of upcoming winter transaction deadlines.