Rory McIlroy throws golf club into pond in frustration

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Rory McIlroy rarely uses a 3-iron. And after watching what happened Friday during the second round of the WGC-Cadillac Championship, it may be a long time until he uses one again.

McIlroy struggled on the eighth hole. And his frustration boiled over during that time when he used a 3-iron for an approach shot. But the ball didn't end up where he had intended it to land, as it splashed into a pond.

That's when McIlroy tossed the 3-iron into said pond.