Three, but their parents only registered Rudy, though officially they called him Remco. And then there are Dirk and Herman. Dirk and Herman are experts at hiding in the bushes. Rudy usually goes in the attack, and after 10-20km Dirk takes over, while Herman spends a lot of time developing victory celebrations. He usually jumps in the final 5k. Herman is also the arrogant one of the bunch, luckily it was him who got injured. Dirk left a gap in the descent to stay out of sights so that the camera wouldn't notice the switcheroo, and only 200 meters later Herman went over the bridge.
This is what went wrong in stage 1 of Burgos last year. Rudy attacked but Dirk fell asleep in the bushes, so the peloton caught Remco. With the long break in Germany two years ago, it was Herman who screwed up.