A Tour de France spectator caused a huge pile-up after sticking their arm out to take a selfie on Sunday, 16 July.<br /><br />Around 20 riders crashed on stage 15 as the fan knocked Sepp Kuss’s handlebars.<br /><br />Footage shows the spectator holding a phone with an outstretched arm before the pile-up.<br /><br />The American cyclist came crashing down alongside a large group in the peloton.<br /><br />“Luckily I’m OK and hopefully the other guys in the crash are all right,” Kuss said.<br /><br />All riders who were involved in the crash completed the 179km race.