I mean, you can call young Delino DeShields "Junior" if you want. But technically speaking, he's not a junior at all. His father was Delino Lamont DeShields; this latest version is Delino Diaab DeShields. The former is 43 years old and hasn't played since 2002. So there shouldn't be much confusion.
You can call fthe younger Delinoast, though. This season the 19-year-old second baseman stole 101 bases, and the Astros' No. 1 draft pick two years ago ranks among the more improved players in pro ball.