back the wrong horse

Verb

 * 1) To support something or someone that later turns out to be unsuccessful.

Translations

 * Czech: vsadit na špatného koně
 * Finnish: veikata väärää hevosta
 * French:
 * Hungarian: rossz lóra tesz
 * Polish: stawiać na złego konia, postawić na złego konia
 * Portuguese: apostar no cavalo errado