Cubs No. 5 prospect Jefferson Rojas' swing turning heads in major-league camp — 'Wow'

PHOENIX — About 20 minutes before Cubs prospect Jefferson Rojas was set to face right-hander Cade Horton in live batting practice early this spring, the NL Rookie of the Year runner-up had a request: “Hey, go easy on me.”

Rojas didn't exactly oblige.

On a backfield at the Cubs’ Mesa complex, with a gaggle of fans, coaches and players looking on, Rojas launched a home run off Horton.

“I told you!” one of Rojas’ minor-league teammates said to another as they passed.

Horton...