Teapot
Someone who bends over to tie their shoes and falls asleep. Usually because of concussion symptoms. Also used by fans in denial as an excuse for poor and/or embarrassing performances by athletes (i.e. every Pittsburgh Penguin after the 2013 NHL East Conference Finals).
Hockey Observer: "Sidney Crosby is such a teapot. He fills himself up just to poor himself out."

Hockey Expert: "In 2013, Jerome Iginla famously decided not to go to the Bruins, what a teapot decision."

"That guy is such a teapot."