Kasey Kahne won't defend Brickyard 400 title because of health issues Unknown 00:11 Kahne, 38, is having ongoing issues with dehydration that are causing him to experience an elevated heart rate. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsWorld Cup 2018 pots: Who could England, Germany and Brazil draw in the group stage?Solanke situation at Liverpool branded 'ludicrous' as Bruce calls for feeder clubsFalcons hitting familiar stride at the perfect time — againNeymar earns the same salary at PSG as every woman in top seven leagues combinedISL 2017: Team of Round 2 - Bengaluru FC off to a flying startNFL playoff picture: Bills, Panthers, Falcons play strong wild cards