Memo to MLB pitchers young and old: Whatever you do, don't give the new, young hitters anything to hit in their MLB debuts. They're coming up swinging and they're ready to make an instant impact at your expense.
On Tuesday night, Carlos Perez of the Los Angeles Angels made his instant impact, becoming the first player since Miguel Cabrera in 2003 to hit a walk-off homer in his major-league debut.
On Wednesday, Eddie Rosario of the Minnesota Twins decided he really didn't want to wait that long.