ARLINGTON -- Jake Silver still wonders how he didn't flinch.The then-16-year-old bone cancer patient in Massachusetts was lying still in a pre-surgery scan in July 2016. His sister called, crying."Zeke Elliott asked for your bracelets," Halle Silver told their mom Melissa Duca on the phone.Halle, then 14, was shocked. Of all the Ohio State Buckeye football players she'd messaged on Instagram about her brother's illness, Elliott was the last one she expected to respond.