Four times , he pitted from the lead under yellow and emerged outside the top five behind drivers who elected for two tires or did n't stop .
Despite a dominant car , Keselowski 's nerves still were frayed Sunday .
Four times , Keselowski pitted from the lead under yellow and emerged outside the top five behind drivers who elected for two tires or did n't stop .
Despite a dominant car , Keselowski 's nerves still were frayed Sunday .