Grandal will report to the Reds' player development complex in Goodyear, Ariz., for at least two weeks. At some point this season, he will join the organization's rookie-level team in Billings and finish the season there.
The Reds have a full 40-man roster, which that means a player will have to be moved to make room for Grandal. Jocketty said that player hasn't been told yet, so a roster move will be announced some time on Tuesday.
At home in Miami, Grandal had to keep his Monday night signing party low-key. His professional career is starting right away.
"Nothing big, just a little get-together with my family so we can celebrate," Grandal said. "It can't be too much because I'm headed to Arizona [on Tuesday]."
In 62 games with University of Miami this season, the 21-year-old Grandal batted .401 with 15 home runs, 60 RBIs and a .527 on-base percentage. He was a semifinalist for the Golden Spikes Award, given annually by USA Baseball to the top amateur player in the country. He's been out of game action since Miami was eliminated from the Super Regionals.
"I've just been working out and hitting and trying to stay in baseball shape as much as possible," Grandal said.
Grandal was in Cincinnati over the weekend and watched the Reds play the Marlins from Jocketty's suite on Friday and Saturday. His physical was taken on Saturday. He had the good fortune to get to sit next to manager Dusty Baker during the games, since Baker was serving a two-game suspension.
"It was amazing," Grandal said. "I got to talk with Joe Morgan after seeing him on TV all of the time and some of his games from way back. It was a great experience being there and talking to Dusty and seeing two games sitting right next to him. I got a vibe of what it might be like if I get the chance to play for him."
As for Grandal's impression of Great American Ball Park?
"It's a great hitters' ballpark, especially for lefties," said Grandal, who is a switch-hitter.
Jocketty established his precedent of giving out big league contracts to Draft picks two years ago, when another Miami product, first baseman Yonder Alonso, was added to the 40-man roster while getting a five-year, $4.55 million contract. Alonso and Grandal have the same agent in Greg Genske.
"There were a lot of similarities, but the money was less," Jocketty said. "It's getting tougher and tougher for us to do that [give big league contracts to Draft picks]. I don't think we can do it again. It's the way it goes."
Also on Monday night, the Reds agreed to terms with sixth-round pick Drew Cisco. A right-handed pitcher, sources say that Cisco will receive a $975,000 bonus.
The grandson of former Major League pitcher and pitching coach Galen Cisco, Drew Cisco attended Wando High School in Mount Pleasant, S.C., and had signed to play for the University of Georgia.
"He would've been picked higher and got more money, but he told a lot of clubs he was going to college. We were able to sign him and we're excited," Jocketty said.
Other Draft picks signed prior to Monday's 11:59 p.m. ET deadline were left-handed pitcher Joel Bender, a 27th-rounder out of Cincinnati's Oak Hills High School, and 28th-round selection, right-handed pitcher Chad Rogers.
That officially closed the book on the 2010 Draft, with the Reds signing 32 of their 50 selections and everybody picked in the top 15.
"[Scouting director] Chris Buckley and his staff did a good job with both our amateur Draft and international signings. We've got quality kids," Jocketty said.