It comes after confusion earlier in the day about whether Scout.com's 13th-rated receiver in the 2012 class was close to making a decision.
Reports swirled early Friday stating Tregg was going to announce during Nike's The Opening event in Beaverton, Ore., but by early afternoon he said he wasn't ready to decide.
However, after the night session at The Opening, Treggs tweeted "actually, I think I will commit tomorrow. Wonder who I'm gonna commit to?" A few minutes later he tweeted "Big decision to make tonight."
When contacted by IrishEyes.com, Treggs said he was going to make a decision and announce Saturday.
Treggs was uncertain of the time of the announcement, but Scout.com is at The Opening and will have coverage of it.