Arizona Cardinals defensive back Josh Shaw was suspended through next season for betting on NFL games, and it turns out one of those bets was against his own team, according to David Purdhum of ESPN.com.

According to the report by ESPN, Shaw placed a parlay bet on November 10th at Caesars Palace in Las Vegas. Part of the parlay was betting the Tampa Bay Buccaneers -1 for the second half.

Before placing bets, Shaw filled out an application for a betting account, and on the application, he wrote that he was a professional football player. That prompted Caesars palace to open an investigation and notify the NFL. During the NFL's investigation, they did not find any evidence, that Shaw was using inside information to place his bets.

“The league said its investigation found no evidence that Shaw used inside information to make his bets nor that any games were compromised. Parlay bets, because they require multiple correct picks, typically have not been associated with point-shaving or game-fixing schemes.”

“The NFL declined to comment on specifics of the wagers, with a league spokesman saying that neither the type of bet nor the games involved matter in terms of the league's gambling policy.”

Shaw hasn't been around the Cardinals as he has rehabbed from a shoulder injury. The team wasn't aware that Shaw was being investigated until the suspension was announced.

Hopefully, this is a lesson to players around the league that the NFL is serious about players not betting on games, whether they are playing or not.