On Tuesday, defensive lineman Israel Antwine, from Millwood (Okla.) High School, announced he has switched his verbal commitment from Oklahoma State to CU.
Antwine is expected to sign his national letter of intent on Wednesday, the first day of the new early signing period.
"I was just thinking about what's best for me and what's the best decision for my future," Antwine told Newsok.com. "I saw a chance to play early as a freshman and to spend more time at defensive end which is my favorite position."
Antwine, who has 21 offers, according to 247sports.com, committed to Oklahoma State on Oct. 15, picking the Cowboys over the Buffs at that time.
The CU coaching staff never stopped recruiting the 6-foot-3, 285-pound, three-star prospect, however, and it paid off. Antwine took an official visit to CU the weekend of Oct. 7.
Defensive line was one of CU's weaknesses this past season, and a high priority in this recruiting cycle.
Prior to Antwine's decision, the Buffs had just one defensive lineman verbally committed: 6-4, 245-pound defensive end Tava Finau of Luther Burbank High School in Sacramento.
The Buffs also have a good chance to sign Mustafa Johnson, a 6-2, 285-pound defensive tackle from Modesto (Calif.) Junior College.
In addition, the Buffs will add Jalen Sami this winter. A 6-foot-6, 320-pound nose tackle from Vista Ridge High School, Sami signed last February and gray-shirted this year.
That group will bring depth and competition to a group that is expected to return six players from this year: seniors Javier Edwards, Jase Franke and Chris Mulumba; junior Lyle Tuiloma; sophomore Terriek Roberts; and redshirt freshman Terrance Lang, a highly-regarded recruit from the 2017 class.
CU now has 20 players verbally committed for the 2018 class and is expected to have the class nearly complete by Wednesday.
Contact staff writer Brian Howell at email@example.com or twitter.com/BrianHowell33.