At risk of blowing a late lead at Kansas State, TCU guard Jameer Nelson Jr. stepped up and delivered one of the biggest clutch shots of the season as late 3-pointer lifted the Horned Frogs to a 75-72 win at Kansas State on Saturday. With 41 seconds remaining in the game TCU seemed poise to pull away for a needed Big 12 road win. However, Horned Frogs’ miscues, including missed free throws and a turnover by Micah Peavy with 15.6 seconds left, allowed Kansas State to claw back to 72-70. Nelson then was called for a loose ball foul on the inbound pass despite one official calling a five-second vi…