Texas product Jordan Spieth was disqualified from the Genesis Invitational on Friday after signing an incorrect scorecard on the fourth hole.

Spieth missed a putt after chipping onto the green, and then proceeded to score a on four strokes. However, he signed for three and stepped out of the scoring area.

"Rules are rules, and I take full responsibility. I love this tournament and golf course as much as any on @PGATOURso it hurts to not have a run at the weekend. Really appreciated the support in LA," Spieth said in a statement on X formerly known as Twitter.

A three-time major winner, Spieth had been on his way to making the weekend cut for the tournament, landing in the top 10 of the first round ranks. He wasn't the only superstar to miss the competition, as Tiger Woods had withdrawn due to illness.

At Texas, Spieth played for one year from 2011-2012 and was a consensus first-team All-American and finalist for the Ben Hogan Award as the National Player of the Year while leading the Longhorns to the 2012 NCAA Championship.

Why was Jordan Spieth disqualified from the Genesis Invitational?

Golfers are responsible for keeping their own score during tournament rounds. After each hole, the player marks how many strokes it took to get the ball into the cup. The amount of strokes that are tallied at the end of the round is the score that they make, and once a player leaves the scoring area there is no changing what they wrote down.

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To prevent cheating, officials double check scorecards with their own math after a player has turned the card in. The invitational officials went over Spieth's card, saw it was inaccurate and disqualified him because of it.

This article originally appeared on Austin American-Statesman: Why was Jordan Spieth disqualified from the Genesis Invitational?