Star defensive tackle Dexter Lawrence was among three Clemson players who tested positive for a banned substance earlier this month, head coach Dabo Swinney told reporters in Dallas Monday.
It's not clear if the test results will impact the players' eligibility for Saturday's College Football Playoff semifinal between the No. 2 Tigers and No. 3 Notre Dame (4 p.m., ESPN/ESPNApp) at AT&T Stadium in Arlington, Texas.