Francisco Alvarez talks first spring action, improving nutritional routine, the ABS Challenge system

Mets starting catcher Francisco Alvarez made his spring training debut behind the plate on Saturday and his most important takeaway is he feels "completely healthy." He did make some adjustments to his diet that have also contributed to his "feeling really good." Alvarez didn't think he would issue too many challenges in the new ABS system feeling the umpires have a tough enough job as it is.