How does he know? Because when's he not lost, he's not letting juicy fastballs pass him without sending them back. Against St. Louis Cardinals starter Shelby Miller, Sandoval apparently missed a fastball down the middle.
"When I feel good, I don't miss those pitches," he said.
On Sunday, hitting coach Hensley Meulens elaborated on Sandoval's concern.
Sandoval is fine, Meulens said. It's just fine-tuning his mechanics at the plate. After Sandoval's first at-bat Saturday against Miller, in which he flied out on an 0-1 fastball, Meulens took Sandoval to the video room to show him what was wrong.
"He was lunging and getting too far back," Muelens said. "Overall, he's not getting his feet down; that's why he's missing fastballs. I showed him those three home runs he had last year in the World Series. He was much shorter, getting his foot down, not overloaded at the bat. He corrected that very quickly."
Indeed, Sandoval came through with an RBI single in his next at-bat and a solo home run in the eighth inning.
Willie Bans is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.