"Officially signed and now a part of the @Reds #blessed" said Travieso in a pair of Twitter posts. "Wish I could stay for the game tonight in Cincy but I'm heading back to AZ to get it all started!"
That likely means Travieso will play for the organization's Arizona League, rookie-level club, based at the team complex in Goodyear.
There was no official word from the Reds about signing Travieso, who was in Cincinnati for a physical. Reds general manager Walt Jocketty was not available for comment.
The 14th overall selection out of Archbishop McCarthy High School near Fort Lauderdale, Fla., Travieso will receive a bonus of $2 million, MLB.com's Jonathan Mayo said in a report last week. According to Major League Baseball guidelines, the recommended bonus slot for that pick is $2.375 million.
An 18-year-old Travieso, who is 6-foot-3, 190-pounds, was 8-1 with a 0.76 ERA this year. He struck out 100 and walked 17 in 65 innings. His velocity generally is in the 92-95 mph range, but he has reached 99 mph in more recent outings.