Erik Spoelstra, who is widely known as one of the NBA's top coaches, shouldered blame for a brutal timeout infraction, calling it a "serious mental error" in the final seconds of a Miami Heat loss to the Detroit Pistons.

Miami Heat head coach Erik Spoelstra admitted that his own “horrendous mistake” cost the team in its 123-121 defeat to the Detroit Pistons in the NBA Cup on Tuesday.

Instead, it was a grave mistake by head coach Erik Spoelstra in the dying seconds of the game. Coach Spo called a timeout after the Pistons leveled the game at 121-121. However, the Heat had no timeouts left and it resulted in Spoelstra being slammed with a technical foul as Detroit sealed the game.