An iguana interrupted a tennis match at the Miami Open yesterday. First it was on a scoreboard next to the court, and a player from the Czech Republic didn't want ANYTHING to do with it.
There's a video where a linesman tries to get him to keep playing, and says they're not dangerous.
The other player was Tommy Haas from Germany, who had NO problem with it. He walked over to the scoreboard and took a selfie. It ended up running onto the court when someone tried to catch it, and caused about an eight-minute delay.