PHOENIX — Cubs catcher Willson Contreras covered his right knee with his glove, his right hand busy pressing buttons under it. Left-hander Justin Steele looked up just to give a quick nod, then delivered a called strike to fan the side in the second inning of the Cubs’ 3-2 victory Sunday against the Diamondbacks.
The inning would’ve flown by no matter how Contreras relayed pitch calls to Steele. But the PitchCom device attached to the top of the catcher’s shin guard and the receiver in the pitcher’s cap shaved off the time between Steele digging in and reading the sign.
