Alvarez (thumb) is set to participate in batting practice Saturday, Abbey Mastracco of the New York Daily News reports.
Alvarez landed on the 10-day IL after tearing the UCL in his left thumb April 19, and the 22-year-old catcher is on track for a return by late June. Alvarez was slashing .236/.288/.364 with one home run and eight RBI over 59 plate appearances prior to his injury.