Oregon will add at least two players when basketball’s early signing period begins on Wednesday, but the Ducks may need to wait until spring to hear from some of their top targets.

Isaac Johnson, a 6-foot-11 center who averaged 18.2 points and 5.8 rebounds last year for American Fork (Utah) High School, committed to the Ducks on Thursday. However, he will not arrive at Oregon until 2021 following his two-year church mission.

The only newcomer currently slated to join the Ducks next season is Chris Duarte, a 6-6 junior-college transfer from Northwest Florida State. Duarte is averaging 22.2 points, 8.0 rebounds, and 3.2 assists through five games of his sophomore season with the Raiders.

Oregon has 11 players on scholarship this season including seniors Paul White and Ehab Amin. That leaves the Ducks with at least four openings to reach the max of 13 scholarships for next season, although freshman Bol Bol is expected to turn pro and open up another spot on the roster.

Oregon remains in the mix for some of the top recruits in the nation including 6-5 guard Cassius Stanley of Sierra Canyon High School in Chatsworth, Calif. Stanley, a four-star recruit ranked as the No. 27 prospect in the nation by 247Sports.com, is also considering UCLA and Kansas, but is expected to choose a school during the one-week early signing period that runs through Nov. 21.

Stanley will be in Oregon when Sierra Canyon plays in the Les Schwab Invitational at Liberty High School from Dec. 26-29.

Chandler Lawson, a 6-8 forward from Wooddale High School in Memphis, Tenn., has visited Oregon as well as Kansas and Mississippi. He is expected to sign a letter of intent during the next week.

Some of the nation’s top recruits will wait until the spring signing period begins on April 17 to pick a college.

That list is expected to include five-star Cole Anthony, a 6-3 guard from Oak Hill Academy in Mouth of Wilson, Va. who is ranked as the No. 3 recruit in the nation by 247Sports.com. Anthony visited Oregon last month and is also being recruited by North Carolina, Notre Dame, Georgetown, and Miami.

Four-star C.J. Walker, a 6-8 power forward from Oak Ridge High School in Orlando, Fla. ranked as the No. 28 prospect by 247Sports.com, may also wait until spring before choosing between Oregon, LSU, and Miami.