The Twins traded Castro to the Cubs, who will host the San Diego Padres for a National League Wild Card Series this week, at this year's trade deadline in exchange for minor league right-handed pitchers Ryan Gallagher and Sam Armstrong. Castro has struggled since becoming a Cub, slashing .170/.245/.240 (40 wRC+) in 110 plate appearances. Castro likely won't start during the postseason, but could see time as a pinch hitter and defensive replacement.
Cubs LHP Caleb Thielbar
The Cubs signed Thielbar, who previously spent his entire career with the Twins, to a one-year deal worth $2.