Shortly after the Mets acquired Yoenis Cespedes from the Tigers at the trading deadline, my 9-year-old son, Bradley, not only realized how important the newest Met was going to be for the team, but he also noticed an unfamiliar part of his equipment.
“What is that thing on his arm?” he asked.
I had noticed it before but never really thought about it, but I honestly didn’t know what it was. Since my son plays youth sports and he likes to be up to date on accessories, I figured I would try to get him an answer.