Foltynewicz, the hard-throwing right-handed pitcher the Astros selected with the 19th overall pick on Monday in the First-Year Player Draft -- the club's second pick overall -- could be in Houston next week to sign the contract and begin his professional career.
"Some of the other things regarding school and other stuff have to be worked out," Witt said. "As far as the Astros and terms, they have been agreed upon."
Per team policy, the Astros won't acknowledge that a deal is in place until a contract is signed.
Foltynewicz, at 6-foot-4 and 190 pounds, sits in the low 90s mph with his fastball and has touched 96 mph, complementing the pitch with a good changeup. He was the first pitcher taken in the first round by the Astros since left-hander Brian Bogusevic in 2005, but Bogusevic has since been moved to the outfield.
"My goals are to try to get to the pros as soon as I can, within two or three years," Foltynewicz said after being drafted. "I feel really confident about that. I'm a really hard worker, and I'm going to listen to everything that everyone has to say. I'll take criticism the right way and learn from it, and I want to try to get up soon."
Foltynewicz went 9-1 with a 0.38 ERA and 128 strikeouts in 72 2/3 innings this year for Minooka Community High School in the Chicago area.
Brian McTaggart is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.