Warney kicked off his tournament by sharing a snap of his buy-in receipt, clearly showing his name and the fact it set him back $US10,000.
And following pics of the Aussie trudging around the Rio All-Suite Hotel and Casino with an e-cigarette in his mouth, the 46-year-old was caught forgetting his poker face at the table, The Sun reports.
While the key to poker seems to be never letting the table read your emotion, it was clearly all too much for the former spin king, as he pictured looking glum while fiddling with his chips.
Following the less than ideal showing on day one of the event, the ever-outspoken Warne took to Twitter to share his experience, claiming he would get back on track during the second day.
He said: "Toughest day one I've had in 9 years of competing in the #WSOP main event.
"Going to hang in there & try make it through to day 2 #patience."