Dustin Diamond, the actor best known for playing Samuel "Screech" Powers on the '90s sitcom "Saved by the Bell," is set to go to trial in May over charges that he stabbed a man at a Wisconsin bar back in December.

On Thursday, an Ozaukee County judge scheduled the trial date in the case against Diamond to begin on May 27, reports Fox 6 Now. Diamond has pleaded not guilty to the charges. If convicted, he faces up to 10 years behind bars.

The 38-year-old actor was taken into custody on Dec. 26, 2014, by police in Ozaukee County for allegedly stabbing a man with a switchblade during a fight at the Grand Avenue Saloon fight in Port Washington on Christmas night. He was then charged with reckless endangerment of safety, disorderly conduct and carrying a concealed weapon.

A criminal complaint states that Diamond and his fiancée, Amanda Schutz, 27, got into a physical altercation with two men and a woman. However, Diamond told police he accidentally stabbed one of the men while trying to defend his fiancée.

According to court documents, Diamond said, "There was a group of intoxicated people being rude and insulting" at the bar that night. He also claimed he intervened after his girlfriend got into an altercation with another woman and was bleeding. Diamond said he unintentionally stabbed the man while "chaos broke out and people were grabbing at him."

In addition, court documents show the victim suffered from a non-life-threatening, 1/2-inch wound under his armpit and heavy bleeding.

Diamond's defense attorney, Thomas Alberti, said the former child star "continues to believe the legal process will exonerate him and he is undaunted by the work that lies ahead.

"I'm feeling very positive about the outcome [of the trial]," Alberti told People magazine. "The deeper we dig the more confident we feel about the outcome. The police and the prosecutor provided us with video and witness reports and everything we see completely supports what we said all along happened so we feel very good about it."